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Erfoud

Erfoud is a small oasis town in the Drâa-Tafilalet region of southeastern Morocco, positioned along the Ziz River valley as a primary gateway to the Sahara Desert and the nearby Erg Chebbi sand dunes. With a population under 10,000, the settlement developed historically as a caravan stop and later under French colonial influence as a Foreign Legion outpost, now sustaining an economy centered on date palm cultivation, fossil mining, and tourism. The region's ancient seabed legacy yields abundant marine fossils from over 350 million years ago, processed in local workshops into slabs and ornaments that attract collectors worldwide, while vast palm groves produce some of Morocco's premier dates, celebrated annually at the town's moussem festival. Erfoud serves as a staging point for camel treks and 4x4 expeditions into the dunes, underscoring its role in facilitating access to the desert's expansive ergs and nomadic Berber heritage.

Geography

Location and Topography


Erfoud is situated in southeastern Morocco within the Drâa-Tafilalet region, at geographic coordinates approximately 31°26′N 4°14′W. The town lies at the periphery of the Sahara Desert, functioning as a key oasis settlement in the Tafilalet area, which is nourished by the Ziz River valley. It is positioned about 500 kilometers southeast of Marrakech via road, placing it in a transitional zone between the Atlas Mountains' influence and the vast desert expanse.
The surrounding topography features expansive palm groves typical of desert oases, interspersed with rugged rocky plateaus extending from the eastern formations. Erfoud sits at an elevation of 813 meters above , with nearby landscapes revealing remnants of ancient seabeds through fossil-rich quarries. These quarries expose Devonian-period marine deposits, dating to roughly 400 million years ago, evidencing prehistoric shallow seas that once covered the region. Erfoud's location provides close access to prominent desert features, including the Erg Chebbi sand dunes located near Merzouga, approximately 50 kilometers to the southeast. This proximity underscores its role at the Sahara's immediate edge, where alluvial oases contrast sharply with encroaching ergs and hamada plateaus.

Climate and Environment

Erfoud exhibits a hyper-arid with minimal , averaging 81 mm annually, primarily occurring during sporadic winter events. Temperatures feature extreme diurnal variations, with summer daytime highs frequently surpassing 45°C and nighttime lows dropping significantly, while winter days average around 17°C and nights approach 0°C. These patterns result from the region's Saharan location, where subsiding high-pressure systems inhibit rainfall and amplify solar heating on sandy surfaces. The local environment depends heavily on the Ziz River, originating from the , and underlying aquifers to sustain sparse vegetation amid encroaching dunes. Rare intense storms trigger floods along the river , capable of causing sudden inundation due to the impermeable desert and steep upstream gradients. Sand encroachment from surrounding ergs progressively threatens vegetative cover and stability, exacerbating through burial and reduced moisture retention. Biodiversity remains limited to drought- and heat-tolerant adapted to the Saharan conditions, including reptiles, , and occasional nomadic mammals that exploit transient water sources. Geological features such as bentonite-rich clays and intermittent salt flats influence the unique soil composition, promoting high and low organic content that further constrain ecological diversity.

History

Ancient and Pre-Colonial Periods

The Erfoud region, within the broader Tafilalet oasis complex, features extensive fossil deposits from the period, dating to approximately 419–358 million years ago, when the area formed part of a shallow basin in the ancient . These strata yield abundant cephalopods and other , evidencing a prehistoric that supported diverse before tectonic shifts and transformed the landscape. Such geological records, exposed through erosion in local quarries, provide indirect markers of early environmental conditions conducive to later human adaptation, though direct artifacts remain sparse in the immediate vicinity. Berber (Amazigh) communities established and oasis-based agriculture in the Tafilalet by , exploiting subterranean aquifers and foggaras (ancient qanats) for of date palms and grains amid the encroaching desert. These settlements predated Arab conquests, with and groups dominating the area as early as the 7th century CE, transitioning from mobile herding to fortified ksars for defense against raids. The oasis's perennial water sources from the Ziz River supported population densities atypical for the , fostering proto-urban clusters that integrated with sedentary farming. By the , the founding of Sijilmassa as a Midrarid capital in 757 elevated Tafilalet's role as a nexus on routes, channeling commodities like , , salt, and slaves from West African empires such as and northward to Mediterranean ports via caravans. This commerce, peaking from the 8th to 15th centuries, relied on Tafilalet's strategic position at the desert's northern fringe, where taxes on caravans—numbering thousands of s annually—generated wealth that sustained local dynasties until Almoravid incursions in the . Pre-19th-century routes through the region emphasized dates as a staple export, alongside salt slabs from Saharan mines, underscoring causal links between , governance, and long-distance exchange networks.

Jewish Community

The Jewish presence in the Erfoud region dates back millennia, with the local community sustaining learned rabbis and maintaining up to seven synagogues, though without a segregated as integrated residentially with . The modern community coalesced in the early during the French protectorate era, when several hundred relocated from nearby towns and villages such as Ouled Ali and Jrana to Erfoud, drawn by trade opportunities in the oasis. By 1931, Erfoud's Jewish population numbered approximately 1,172, comprising artisans, spice merchants, and financiers of caravan trade routes extending to ; the community also produced prominent rabbinic figures, including members of the Abuhatzira family. In the post-World War II period, constituted about one-third of the population in Erfoud's newer districts, with local shops closing observantly on the . The 1960 Moroccan census recorded 1,183 in the municipality, reflecting a peak tied to regional commerce in goods like spices and dates. Emigration accelerated after Israel's founding in 1948, driven by economic pressures and geopolitical tensions, culminating in near-complete departure to during the ; by then, the community had dwindled to negligible numbers. Today, no permanent Jewish residents remain in Erfoud, though physical remnants such as synagogues and the shrine of Rabbi Shmuel Abu Hatzira persist as markers of this history.

Colonial Era and Modern Development

During the French Protectorate (1912–1956), Erfoud emerged as a strategic military outpost for the , established to pacify tribal unrest in the oasis region amid resistance from local groups. The garrison at Erfoud, supplemented by a post at nearby Ouled el Dahab, fortified French control over trade routes and resource-rich areas, transitioning the town from a pre-colonial hub into an administrative and defensive node. This militarization facilitated initial resource surveys, including early quarrying in the surrounding Hammada plateaus, which began attracting commercial interest by the 1920s as French geologists identified deposits yielding trilobites and fossils. Following Morocco's in , Erfoud evolved into a regional administrative center under the newly sovereign government, with the withdrawal of French forces enabling a shift toward civilian governance and into national networks. Post-independence investments, driven by the need to exploit agricultural and mineral resources, included the expansion of road links like the N17 highway connecting Erfoud to and broader phosphate export corridors, enhancing access to groves and fossil sites. These developments spurred , with the town's expanding from approximately 3,500 in to sustain growth through tied to resource extraction, though precise figures remain sparse in records. By the late , , such as the Erfoud (opened in the 1960s for regional flights), supported administrative oversight and nascent , while mineral exports—including fossils and traces of phosphates—fueled local revenue amid national industrialization efforts. In the , Erfoud's development has been shaped by causal linkages between resource-driven and infrastructural upgrades, with post-1970s policies emphasizing modernization to counter aridity-induced stagnation. Urban expansion in the Ziz Valley, including Erfoud's metro area, reflected broader trends of shifts from 1965 onward, incorporating paved roads and electrification to accommodate a surge linked to export-oriented industries, reaching estimates exceeding 100,000 in the surrounding agglomeration by the . This trajectory underscores how colonial-era security imperatives laid groundwork for independence-era extraction, prioritizing connectivity over equitable distribution amid persistent regional disparities.

Economy

Agriculture and Date Production

The Tafilalet oasis, encompassing Erfoud, relies on date palm () cultivation as its primary agricultural activity, sustaining local economies through both subsistence and commercial output. The Ziz River plays a causal role in enabling this fertility by supplying surface water to the arid valley floor, forming expansive palm groves amid surrounding desert. These groves feature over 5.5 million date palms across the broader region, representing approximately 80-90% of Morocco's national total of around 6-7 million trees. Irrigation combines traditional khettara systems—underground gravity-fed channels tapping aquifers for minimal evaporation loss—with modern motorized pumps drawing from the Ziz and . The premium Majhoul variety dominates, prized for its large size, soft texture, and high market value, originating natively in Tafilalet and now comprising a significant share of plantings due to export demand. Annual national production reaches about 170,000 tons, with Tafilalet's output forming the bulk, though yields vary due to biennial bearing cycles and climatic stressors. Salinization poses a persistent challenge, exacerbated by of and low recharge in the hyper-arid setting, leading to elevated mineralization that reduces productivity and palm health. Despite this, date harvests support exports of high-value varieties like Majhoul, contributing to Morocco's position as the seventh-largest while facing competition and quality consistency issues. Commercial orientation has intensified since the late , driven by varietal improvements and market access, elevating dates' role in regional GDP beyond traditional subsistence.

Fossil Mining and Industry

Erfoud's fossil mining operations primarily extract specimens from Devonian-period (approximately 419 to 358 million years ago) quarries formed by ancient seabeds in the region. These deposits yield abundant marine fossils, including trilobites such as and Asteropyge, straight-shelled cephalopods known as , and , which are quarried from surface outcrops using manual tools like picks and chisels. Commercial extraction began as a of mineral mining in the late 1970s, with operations expanding rapidly due to global demand from collectors, jewelers, and museums. Local workshops in Erfoud process raw fossils through grinding, polishing, and embedding in slabs for decorative and commercial use, supporting a of family-run factories that export finished products worldwide. The industry has transformed Erfoud into a major hub, with specimens shipped to markets in , North America, and Asia, where they are valued for both scientific and ornamental purposes. Annual exports from Morocco's fossil trade, centered in areas like Erfoud and Alnif, are estimated at around $40 million, though precise figures for Erfoud alone are not publicly delineated. This activity provides seasonal employment to hundreds of local miners and artisans, contributing to household incomes amid limited alternative economic opportunities in the region. The Moroccan government regulates fossil exports through the , requiring permits and assessments to authorize sales and curb illicit trafficking, as stipulated under the 1970 Convention, which ratified. Efforts intensified in the with increased inspections and international repatriations, such as U.S. returns of smuggled specimens, though enforcement challenges persist due to porous borders and high black-market demand. Despite these measures, unregulated mining has raised concerns over site depletion and habitat disruption in Erfoud's quarries.

Tourism Infrastructure

Erfoud functions as the principal gateway to the sand dunes, spurring development since the through enhanced road connectivity that simplified access to the Sahara's expansive dunes from the town center, approximately 20 kilometers away. This period coincided with Morocco's broader push to promote as an economic driver, leading to the establishment of dedicated operators for treks and desert excursions. Local accommodations have expanded accordingly, with around 24 , riads, and guesthouses available, including properties like Hotel Xaluca Arfoud and Palais Du Desert & Spa, catering primarily to adventure-seeking visitors. Supporting infrastructure includes the Moulay Ali Cherif Airport in nearby , which operates four daily domestic flights, mainly to , facilitating seasonal influxes of tourists without extensive international service. Paved highways link Erfoud directly to the dunes, enabling efficient 4x4 vehicle tours and quad biking outings organized by local Berber-led companies, which emphasize vehicular navigation across the shifting sands alongside traditional rides for overnight camps. These activities generate employment in guiding, vehicle maintenance, and , amplifying economic effects through supply chains for fuel, equipment, and provisions. Visitor volumes peak during the annual International Date Fair (SIDATTES), which drew a record 91,300 attendees in its 2024 edition from October 30 to November 3, underscoring Erfoud's capacity to handle large crowds via temporary expansions in and lodging. Year-round sustains operations but remains concentrated on short-stay adventures, with focused on rugged durability rather than mass luxury resorts.

Culture and Society

Demographics and Social Structure

The of Erfoud urban commune was recorded as 28,912 in the 2024 Moroccan . This figure reflects a modest of approximately 3,139 inhabitants per square kilometer across its 9.21 km² area, with the town's growth driven by oasis-based settlement patterns rather than large-scale influxes. The features a relatively balanced distribution, with males comprising about 50.1% in earlier assessments, though trends indicate ongoing rural-to-urban contributing to a youth-heavy structure, as 's median age hovers around 29 years amid higher fertility rates in southern regions. Ethnically, the residents are predominantly of Arab-Berber (Amazigh) origin, forming over 90% of the local composition, with historical Arab settlement dominating until recent Berber influxes tied to tourism and economic opportunities in the 1990s. Small influences from Tuareg nomadic groups persist in peripheral areas due to proximity to Saharan routes, though these remain marginal compared to the settled oasis population. Religiously, the community is overwhelmingly Sunni Muslim, aligning with Morocco's national figure of approximately 99% adherence to Islam, with any non-Muslim remnants—such as historical Jewish families—now negligible following mid-20th-century emigrations. Social structure revolves around traditional patriarchal extended family units, where male heads of household oversee , , and labor division in and , reinforced by Islamic norms emphasizing familial and communal . rates, while benefiting from national initiatives like the 2009-2019 National Pact for Education, lag in rural peripheries around Erfoud at roughly 70-75%, mirroring 's overall adult literacy of 77.35% in 2022 but hampered by disparities (female rates ~10-15% lower) and seasonal nomadism disrupting schooling. This manifests in an urban-rural divide, with denser, service-oriented cores in the palm groves contrasting sparser, subsistence-based outskirts where intermittent sustains smaller kin groups.

Festivals and Traditions

The Erfoud Date Festival, held annually in October or early November depending on the date harvest, celebrates the region's primary agricultural product through markets showcasing date varieties, traditional and performances, equestrian competitions, and cultural exhibitions. This event originates from longstanding harvest rituals among local palm cultivators, emphasizing communal gratitude for the yield from over a million date palms in the Tafilalet , and typically spans three days, drawing thousands of participants and visitors from across . Berber communities in Erfoud and surrounding areas preserve customs such as henna ceremonies, where intricate patterns symbolizing protection and fertility are applied during weddings and other rites of passage, often incorporating motifs passed down orally. remains integral, with elders recounting epic tales of tribal history and survival around evening gatherings, fostering intergenerational knowledge transmission with limited dilution from external influences due to the area's isolation. These practices, including festival participation, reinforce social bonds in tight-knit societies by uniting families and clans in shared rituals, while providing a modest seasonal uplift to local artisans and performers through informal and .

Scientific and Research Significance

Fossil Sites and Paleontology

The fossil sites in the vicinity of Erfoud, particularly the quarries around Alnif and the broader region of the eastern , preserve abundant marine invertebrates from sedimentary layers formed in ancient shallow seas approximately 419 to 358 million years ago. These exposures yield well-preserved trilobites, such as species of the aulacopleurid Cyphaspides, alongside ammonoids, , and orthoceratids, often in articulated states that reveal fine morphological details. The strata document benthic communities on the northern Gondwanan shelf, providing evidence of episodic parasitic outbreaks and taphonomic processes that enhance lagerstätten formation. Paleontological investigations of these sites have advanced knowledge of Early to Middle biodiversity and , with quantitative analyses of over 3,300 specimens identifying 158 across stratified faunules in the . These assemblages inform reconstructions of environmental shifts, including shelf dynamics and linked to oxygen levels and predation pressures during the . International research efforts, involving geologists from and , have focused on taxonomic revisions and , such as conodont-ammonoid correlations in sections like Ouidane Chebbi, aiding global correlations of stages. Specimens from these localities are displayed in dedicated facilities like the Tahiri Museum of Fossils and Minerals near Erfoud, which exhibits trilobites and associated invertebrates for scholarly examination, and the Ihmadi Trilobites Centre in Alnif, where prepared fossils support studies of trilobite and community structure. These collections facilitate ongoing analyses of evolutionary adaptations, distinct from commercial preparations, by preserving stratigraphic context for biodiversity metrics and paleoenvironmental modeling.

Mars Analogue Research

The Erfoud region's expansive dunes, rocky outcrops, and arid isolation have served as a terrestrial analogue for Martian surface conditions, facilitating simulations of operations, deployment, and geological . In 2013, the Austrian Space Forum (OeWF) conducted the MARS2013 mission, a 28-day integrated field near Erfoud involving a crew of six simulating Mars surface activities under Mars-analogue protocols, including spacesuit restrictions and communication delays. This effort, part of the PolAres research program, encompassed 20 experiments from 10 nations focused on , , human factors, and telescience, with the site's regolith-like sands and paleo-microbial structures providing proxies for Martian . Subsequent rover testing has leveraged Erfoud's terrain for autonomous navigation and instrumentation validation. In late 2018, the (ESA) and partners deployed three self-driving rovers at the Centre near Erfoud to test visual-inertial and obstacle avoidance in dust-prone environments mimicking Mars dust storms, generating datasets like MADMAX for refinement over 40 weeks of field trials. These tests addressed challenges such as slippage in loose and for terrain mapping, yielding empirical data on rover mobility that informed mission designs, including drill operations on Mars-like soils. Outcomes from these simulations have contributed to practical advancements in Mars planning, including validated models for interaction and dust mitigation, though the site's relative accessibility limits extreme testing compared to analogues like Utah's deserts. Multi-camera and datasets collected at Erfoud have enabled perception algorithm development for planetary rovers, demonstrating reduced navigation errors in low-visibility conditions. Despite these gains, research remains episodic, constrained by logistical factors in the region.

Filming Locations

Major Productions

Erfoud's vicinity, encompassing the dunes and surrounding oases, has served as a key for international productions seeking authentic desert landscapes since the late . Early examples include March or Die (1977), a war drama directed by that utilized the region's arid terrain for North African battle sequences involving local extras and temporary sets constructed amid the dunes. Filming logistics often shifted from urban hubs like Marrakech to Erfoud for its expansive, untouched sand seas, which provided versatile backdrops without modern intrusions, though challenges such as sandstorms and extreme heat necessitated specialized equipment and crew rotations. The 1999 adventure film , directed by and starring and , marked a pivotal production, with commencing in Marrakech on May 4, 1998, before relocating to the outskirts of Erfoud for 17 weeks to depict the ancient city of Hamunaptra. Crews built elaborate ruins on the plateau, approximately 12 miles southwest of Erfoud, incorporating practical effects for chariot chases and undead hordes, while employing hundreds of local residents as extras to evoke period authenticity. This shoot highlighted Erfoud's logistical advantages, including proximity to oases for water supply and rapid set assembly on stable dune bases. Subsequent major films leveraged similar assets: The Four Feathers (2002), directed by Shekhar Kapur, filmed desert march and camp scenes near Erfoud's dunes to portray Sudanese campaigns, utilizing the area's vast erg for wide-angle shots. Prince of Persia: The Sands of Time (2010), under Mike Newell, captured palace and wasteland exteriors in the region, building on Erfoud's established infrastructure for action sequences involving acrobatic combat amid sandstorms. More recently, Spectre (2015), the James Bond entry directed by Sam Mendes, shot high-speed desert chase sequences in Erfoud's vicinity, integrating drone footage of the dunes for a modern espionage thriller. These productions, totaling over a dozen credited to the area per industry databases, underscore Erfoud's role in transitioning from initial Marrakech-based shoots to dedicated desert authenticity.

Impact on Local Economy

Filming in Erfoud provides temporary economic benefits primarily through direct expenditures by production crews on local goods, services, and labor. Productions such as (1999) and (2015) have employed residents in roles like drivers, extras, and hospitality support during on-location shoots in the surrounding desert. These activities generate revenue from filming permits, vehicle hires, and accommodations, with foreign films contributing to Morocco's overall record 1.109 billion dirhams ($110 million) in national revenues from such productions in 2023, a portion of which supports remote sites like Erfoud. The scale of job creation remains modest compared to centralized hubs like , focusing on short-term hires rather than sustained industry growth, as Erfoud lacks dedicated studios. Infrastructure upgrades, such as improved access roads for , occasionally result from larger shoots, aiding but with limited permanence. Site wear from vehicles and sets poses minor environmental costs, though displacement of locals is negligible due to the vast dune areas used. Over the longer term, association with blockbusters fosters "film-induced ," drawing visitors to Erfoud's dunes marketed as cinematic backdrops, enhancing branding as a gateway to the " ." This exposure indirectly sustains lodging and guide services, aligning with broader Moroccan trends where international films boost regional appeal without quantified GDP spikes specific to Erfoud.

Environmental Challenges

Water Scarcity and Drought

The Erfoud oasis, situated in the arid Tafilalet region of southeastern , faces chronic primarily due to overexploitation of aquifers for irrigating extensive groves, which constitute the backbone of local . Annual extraction exceeds natural recharge rates, leading to aquifer depletion rates of approximately 1-2 meters per year in overpumped southeastern Moroccan systems, including those feeding Tafilalet oases. This overpumping is driven by the expansion of date plantations, which demand high volumes of water through traditional flood methods that achieve efficiencies as low as 40-50%. Prolonged droughts in the , including multi-year dry spells from 2015-2018 and 2019-2022, intensified these pressures by reducing inflows and further straining reserves, resulting in date palm yield reductions of 20-40% in affected areas during peak years. The River, a primary source for Erfoud, exhibits high flow variability due to upstream dams like Al Hassan Addakhil, which prioritize storage for and urban supply but limit downstream releases during low-precipitation periods, exacerbating local shortages. in the region, rising from around 100,000 in Tafilalet during the early to over 150,000 by 2020, has compounded demand, with per capita water availability falling below 500 cubic meters annually—crossing the absolute scarcity threshold—in southeastern basins like Ziz. These hydrological challenges have led to measurable declines in oasis viability, with over 60% of Morocco's traditional oases, including those near Erfoud, experiencing shrinkage or abandonment since the mid-20th century due to combined depletion and drought effects. Government monitoring indicates that without interventions like improved irrigation efficiency, aquifer drawdown could accelerate, threatening the sustainability of date production, which accounts for over 70% of Erfoud's agricultural output.

Climate Change Adaptation

Adaptation efforts in Erfoud's surrounding Tafilalet oases, part of Morocco's region, include the PACC-ZO project initiated in the mid-2010s by the Adaptation Fund, focusing on water-efficient technologies such as and sprinkler systems to mitigate impacts from rising temperatures and reduced . These interventions target oasis agriculture, particularly cultivation, by reducing losses in a context where maximum daytime temperatures have risen by about 0.52°C per decade since the , exacerbating through increased rates estimated at 1-2 mm/day higher than baseline levels in southern oases. Solar-powered desalination pilots, such as those deploying treatment for irrigation, have been tested in desert-adjacent areas to supplement , yielding modest expansions in cultivable land up to 38 hectares in select sites, though scalability remains limited by high upfront costs and energy intermittency. Traditional foggaras—subterranean aqueducts channeling groundwater to surface palm groves—have demonstrated inherent resilience to arid variability by minimizing evaporation and salinization through gravity-fed distribution, sustaining oasis ecosystems for centuries prior to modern disruptions. However, modernization pressures, including widespread adoption of motorized pumps since the 1980s, have led to overexploitation and gallery silting, reducing active foggaras by up to 50% in comparable Saharan systems and straining adaptive capacity as recharge rates lag behind extraction amid 1-2°C regional warming since 1980. Renovation initiatives, like khettara rehabilitation in southern oases, have stabilized yields in targeted parcels by restoring flow rates to 5-10 liters/second, but broader implementation faces challenges from soil salinization, where secondary salinity buildup from inefficient leaching affects 20-30% of irrigated date groves. Empirical assessments indicate mixed outcomes for these adaptations: PACC-ZO and similar programs have achieved localized yield stabilization, with production per holding steady at 5-7 tons in pilot zones through 2020, yet indicators—such as vegetation cover loss exceeding 10% in outer fringes—persist without reversal, driven by underlying decline rates of 1-2 meters per year. Critiques from field studies highlight inefficiencies in aid allocation, often favoring urban-proximate or larger cooperative schemes over dispersed rural users, resulting in uneven gains and continued contributions to outweighing climatic interventions. No peer-reviewed evidence confirms a halt to encroaching dune mobilization or contraction trends, underscoring the limits of current measures against compounded stressors like upstream impoundments reducing seasonal inflows by 40% since the .

References

  1. [1]
    What to see in Erfoud, Gateway to the Sahara - FRS
    Feb 10, 2022 · Erfoud is a town in southern Morocco, in the valley of the Ziz River, which has its source in the peaks of the Middle Atlas Mountains and flows ...
  2. [2]
    Erfoud, in southern Morocco, the date capital
    A small town (less than 10,000 inhabitants), Erfoud is only remarkable for its location in the heart of the of the Tafilalt, and its moussem of dates, at the ...Missing: geography population economy
  3. [3]
  4. [4]
    Erfoud - A Treasure for Fossil Hunters - Morocco Fossils
    The best place to find fossils in Morocco is in the town of Erfoud in the middle of the Ziz Oasis, near the famous Erg Chebbi Desert.
  5. [5]
    Erfoud and Morocco's Sahara Desert - Pat's Place
    Apr 7, 2025 · Known for its fossils and date palms, Erfoud is famous for its local workshops that polish ancient marine fossils found in the region, turning ...Missing: facts sources
  6. [6]
    Erfoud Fossils - Trips Around Morocco
    Feb 3, 2023 · The city is one of the largest producers of dates in Morocco, and the date palm industry provides jobs for many of its residents. In addition to ...
  7. [7]
    Erfoud Travel Guide: Best Time, Attractions & Date Festival
    Feb 21, 2025 · Erfoud is an oasis town located in eastern Morocco, the gateway to the Sahara Desert, and approximately 50 km from the Erg Chebbi dunes. From ...Missing: facts | Show results with:facts
  8. [8]
    Morocco's Southern Oases Routes | Morocco Travel Guide
    Finally, around 60km southwest of M'Hamid (and a good 3hr from Zagora), is the unforgettable Erg Chigaga, the real deal, offering relative isolation and a sea ...Missing: exact coordinates
  9. [9]
    Marrakesh to Arfoud - 7 ways to travel via train, plane, taxi, bus, and ...
    How far is it from Marrakesh to Arfoud? The distance between Marrakesh and Arfoud is 426 km. The road distance is 501 km. ... How do I travel from Marrakesh to ...<|separator|>
  10. [10]
    Natural wonders of the Maghreb, Morocco - Deposits
    Jun 7, 2016 · Erfoud – the fossil factory. Most of the excavated Orthoceras limestone is transported to Erfoud, in the centre of the eastern Anti-Atlas.Missing: topography groves plateaus
  11. [11]
    Erfoud to Merzouga - Best Routes & Travel Advice - kimkim
    Aug 9, 2019 · For travelers looking to make the quick 34-mile (55 km) trip between Erfoud and Merzouga, a car is the only option.
  12. [12]
    Erg Chebbi dunes, Moroccan Sahara desert - Adrar Travel
    The Erg is situated in proximity 30km from Erfoud, and Rissani towns, and 558 from Marrakech. The Erg Chebbi desert is among lots of other Sahara dunes in ...
  13. [13]
    Yearly & Monthly weather - Erfoud, Morocco
    Feb 7, 2024 · Rainfall in Erfoud is a rare event, with yearly averages not exceeding 8mm (0.31") even in the wettest month of September, and the town staying ...
  14. [14]
    [PDF] PROPOSAL FOR MOROCCO | Adaptation Fund
    Morocco is an arid country, which likely impacts of expected climate change include frequency and intensity of droughts, unusually devastating floods, changes ...
  15. [15]
    (PDF) Encounters Across The Atlas: Fieldtrip in Morocco 2011
    ... encroaching agriculture, flood, water and sediment sand to cover roads or plantations. The management, adequate vegetation fences were organized as small ...<|separator|>
  16. [16]
    6 - Applied Geomorphology in Deserts: Hazards, Resources and the ...
    The sabkha, consisting of marine salt flats on the western side of the Arabian Gulf, is the best developed and most studied example of this landscape type ...Missing: biodiversity adapted composition
  17. [17]
  18. [18]
    Morocco Fossils: Explore Morocco's Natural Treasures
    Paleontological research shows that the area of Erfoud was a sea bed where many types of marine animals existed, many of which cannot be found today. However, ...Fossils · About Us · Product · Shop
  19. [19]
    Fossils and Sand Dunes in Eastern Morocco - Earthly Musings
    Oct 17, 2018 · The fossils in this part of Morocco range in age from Cambrian to Devonian (about 550 to 360 million years). Saudi Aramco Magazine ran this ...Missing: prehistoric | Show results with:prehistoric
  20. [20]
    Berbers in Morocco | Plurimillenarian Indelible Maghreb Civilization
    May 5, 2020 · The Merinides Dynasty originated from the Berber Zenet tribes. They originated from Tafilalet in southern Morocco but occupied the Rif in the ...
  21. [21]
    Tafilalet Oasis in Morocco
    Apr 22, 2025 · The Tafilalet Oasis in Morocco represents a cradle of ancient civilizations and a vital trading center for centuries. Although there were ...
  22. [22]
    Sijilmasa: The Golden Oasis and Africa's El Dorado | Ancient Origins
    Jun 12, 2023 · Built on the northern edge of the Sahara Desert, Sijilmasa stands in the midst of the lush Tafilalt Oasis, near the banks of River Ziz. Its ...<|separator|>
  23. [23]
    Tafilalt oases, MOROCCO
    HISTORY. Its old capital was the Amazigh (Berber) stronghold of Sijilmassa, founded in ad 757 on the Saharan caravan route from the Niger River to Tangier.
  24. [24]
    The Trade of Tafilalt - jstor
    Trade between southeastern Morocco and the urban centers north of the. Atlas was more regular and of much greater volume than the trans-Saharan trade in the ...
  25. [25]
    Erfoud - Visiting Jewish Morocco
    Jews lived in the Erfoud region for millennia, sustaining learned rabbis in up to seven synagogues. There was no mellah in Erfoud. Jews and Muslims lived ...
  26. [26]
    Erfoud - Brill Reference Works
    Although Jews had lived in the vicinity for centuries, the Jewish community was founded by several hundred Jews from other towns in the region, especially El M ...
  27. [27]
    Back to roots documentary : Retracing the memory of Jews of Tafilalt
    Jun 29, 2023 · Moroccan Jews were moved to Erfoud from some surrounding villages (Ouled Ali and Jrana). According to a report written at “La Voix des ...
  28. [28]
    Jewish Heritage of Erfoud and Rissani, Morocco | New York Jewish ...
    Jan 31, 2020 · In 1931, the Jewish population of Erfoud was about 1,172. Many were artisans and owners of various spice shops and the town was the home to many ...
  29. [29]
  30. [30]
    Shrine of Shmuel Abu Hatziera at Erfoud, Morocco | Archive
    Community: In 1954, about one-third of the inhabitants of the new section of Erfoud were Jews. On Saturday, the Jewish Sabbath, all shops were closed – ...
  31. [31]
    [PDF] The World Of Big Five Tours & Expeditions
    desert's tapestry of small settlements and villages, Erfoud is a French Foreign Legion outpost that retains its roots as a trade center. The main souq sells ...
  32. [32]
    Illegal Trading Degrades World's Largest Fossil Museum - Artnet News
    Oct 28, 2014 · Erfoud's fossil reserves are protected by UNESCO and an international agreement signed in 1970 prohibiting the export of fossils from the region ...Missing: 1920s economic impact
  33. [33]
    [PDF] Reflection on the Evolution of a 'Water Ethic' in Semi-Arid Morocco
    Dec 2, 2011 · Politically, Morocco chose, after its independence, to base its economic development largely on natural resources – including agricultural – ...
  34. [34]
    Erfoud - Population Trends and Demographics - CityFacts
    Erfoud ; Population Over Time. Years 1975 to 2015. Data ; Population change from 2000 to 2015. Increase of 7.2% from year 2000 to 2015. Location ; Median Age.
  35. [35]
    [PDF] Kingdom of Morocco - Country Assistance Review
    Jan 29, 1997 · The fundamental aims of the Bank's assistance strategy since 1983 have been threefold: to help stabilize the economy; to raise the rate of ...
  36. [36]
    Evolution of Landscapes and Land Cover in Old Villages of Ziz ...
    Apr 9, 2024 · This study aimed to investigate the changes in the landscapes and land cover in the villages of the Ziz Valley from 1965 to 2023.Missing: aquifers encroachment
  37. [37]
    [PDF] Migration and Development in Southern Morocco - Hein de Haas
    This study demonstrates how migration has changed the face of traditional oasis society, and how international migration has significantly contributed to the ...
  38. [38]
    Thirty Years of Change in the Land Use and Land Cover of the Ziz ...
    Dec 1, 2023 · Otherwise, in the southeastern area of Morocco, the oasis' ecosystem is suffering from degradation due to droughts, a high rate of evaporation, ...Missing: flash | Show results with:flash
  39. [39]
    [PDF] Climate change vulnerability of Drâa-Tafilalet oases
    Jun 13, 2025 · Today, the Drâa-Tafilalet contains over 5.5 mln date palm trees, which constitute approximately 80% of Morocco's total date palm trees. (Ait-El- ...
  40. [40]
    [PDF] A journey through Morocco's date palm production system
    In the Tafilalet region, agriculture remains the main economic activity (about 90%) for an average of 663,700 inhabitants, among which 66.8% are rural.
  41. [41]
    Khettaras in the Tafilalet oasis (Morocco) - Built Heritage
    Oct 10, 2022 · The history of khettaras and of the revolution the khettara system has initiated in ancient irrigation techniques can play an important role ...
  42. [42]
    Ancient Waterways in Morocco - NASA Earth Observatory
    Nov 18, 2016 · These are qanats (khettaras in Moroccan)—ancient underground water channels designed to transport water down slopes without active pumping.
  43. [43]
    A journey through Morocco's date palm production system
    This makes the Drâa-Tafilalet region a crucial centre for date production in Morocco, contributing 90% of the national date production, further highlighting ...
  44. [44]
    Morocco Aims to Boost Date Production Amid Climate Challenges ...
    Oct 2, 2023 · Morocco is the seventh largest producer of dates in the world, with a volume of 170,000 tons per year. However, challenges remain to develop ...<|separator|>
  45. [45]
    (PDF) Elucidating the sources and mechanisms of groundwater ...
    Aug 10, 2025 · Given that this arid basin is entirely dependent on groundwater resources, long-term salinization of groundwater in the Ziz Basin could lead to ...
  46. [46]
    [PDF] Department for Environment - Millennium Ecosystem Assessment
    The average speed of flooding is about 17 m / year toward the palm groves in the period of 2000-2003. A weak mobilization of flood waters causes a shortfall ...
  47. [47]
    Variations in physicochemical and microbiological characteristics of ...
    In Morocco, date palm covers 61,332 ha, concentrated mainly in the province of Draâ - Tafilalet (77 %), followed by the region of Sous Massa (15 %), Oriental ( ...
  48. [48]
    The international fossil trade from the Paleozoic of the Anti-Atlas ...
    The search and commercial exploration of fossils in the south of Morocco started in the late 1970s, as a byproduct of the commercial collection of minerals, in ...
  49. [49]
    The Fossil Frenzy - The New York Times
    Oct 29, 2000 · The desert around Erfoud, in fact, has become one of the richest and most lucrative sources of fossils on earth, especially for trilobites -- ...
  50. [50]
    The international fossil trade from the Paleozoic of the Anti-Atlas ...
    Oct 23, 2018 · The fossil trade of Paleozoic material from southern Morocco was estimated by some North American media to reach about US$ 40 million a year.
  51. [51]
    Morocco's surging trade in fossils | ENACT Africa
    Jun 7, 2019 · An investigation from French newspaper Le Monde published in August 2018 found that exporters earn up to US$100 000 per year. Although ...Missing: economy value
  52. [52]
    US Returns Fossils to Morocco. - The Fossil Forum
    Oct 7, 2023 · The US returns three fossils of no particular scientific or cultural value to Morocco and keeps all the actual good stuff. The politicians do a ...Moroccan Fossils Seized.WARNING! Fossil Exports from MoroccoMore results from www.thefossilforum.comMissing: employment | Show results with:employment
  53. [53]
    [PDF] The Evaluation of Tourism Marketing Model within Moroccan Public ...
    As shown in Figure 1, Morocco had 11.35 million tourist arrivals in 2017 which makes it the first destination of Africa in terms of tourists‟ arrivals and the.Missing: numbers | Show results with:numbers<|separator|>
  54. [54]
    10 Best Erfoud Hotels, Morocco (From $104) - Booking.com's
    Erfoud – 24 hotels and places to stay · Palais Du Desert Hotel & Spa · Maison Acacias · Kasbah Hotel Xaluca Arfoud · Kasbah Tizimi · Palm's Hotel Club · Belere Arfoud.
  55. [55]
  56. [56]
    THE 10 BEST Erfoud Tours & Excursions for 2025 (from C$64)
    1. Trip To Merzouga Desert From Erfoud, Sunset Over Dunes Camel Ride · 2. 3 Days Marrakech to Sahara Adventure Merzouga Dunes & Camel Trek · 3. Merzouga 4x4 Tour ...
  57. [57]
    13th Edition of Morocco's International Date Fair Draws Record ...
    Nov 5, 2024 · The 13th edition of Morocco's International Date Fair (SIDATTES), held from October 30 to November 3 in Erfoud, attracted over 91,300 visitors ...Missing: annual Festival
  58. [58]
    The BEST Erfoud Quad & ATV tours 2025 - FREE Cancellation ...
    Marrakech Desert Tour: 3 Days with Camel, Quad & Campfire. Discover the edge of the Sahara Desert on a three-day budget tour from Marrakech, and explore the ...
  59. [59]
    Arfoud (Errachidia, Drâa - Tafilalet, Morocco) - City Population
    Arfoud. 28,912 Population [2024] – Census. 9.210 km² Area.Missing: 2023 | Show results with:2023
  60. [60]
    City of Erfoud - TravelVerse
    Location: Erfoud is a small, slow-paced town tucked deep in the heart of southern Morocco in the Tafilalet region. The town is relatively small with a few main ...Missing: geography economy
  61. [61]
    Moroccan people | History - Vocal Media
    Morocco has a predominantly Muslim population, with Islam being the state religion. The majority of Moroccans practice Sunni Islam, and the country has a ...
  62. [62]
    Living Together: Religious Coexistence in Morocco
    Dec 27, 2021 · We were at the heart of Moroccan Amazigh, Jewish, and Arab history, as well as Morocco's African roots. Erfoud is an ancient town that is ...Missing: demographics | Show results with:demographics
  63. [63]
    Morocco Literacy rate - data, chart | TheGlobalEconomy.com
    Morocco: Literacy rate: The latest value from 2022 is 77.35 percent, an increase from 76 percent in 2014. In comparison, the world average is 80.97 percent, ...
  64. [64]
    Examples from the Draa-Tafilalet Region in the South East of Morocco
    Dec 8, 2019 · , which makes of it the second. largest region nationwide. It has a population of 1.635.008 inhabitants, with. a population density of 12,37 ...
  65. [65]
    Activities - Visit Drâa-Tafilalet
    From the vibrant rhythms of Ahwach and the sacred chants of Moussem festivals to the traditional weddings that span days, Drâa-Tafilalet's rituals are more than ...
  66. [66]
    Morocco Festivals
    The Dates Festival (Erfoud). This highly recognised festival attracts thousands of visitors to Erfoud every year to taste the fruits of the harvest, attend ...
  67. [67]
    How to Experience the Erfoud Date Festival - Road to desert
    Feb 28, 2025 · It celebrates the date palm harvest and Morocco's rich culture. The festival features traditional music, dance, and date exhibitions. Visitors ...Missing: annual | Show results with:annual
  68. [68]
    The Role of Henna in Amazigh (Berber) Culture
    Jul 31, 2025 · Henna in Amazigh culture is more than a natural dye—it's a symbol of beauty, healing, and celebration in Moroccan traditions.
  69. [69]
    A Guide To Henna Traditions In Morocco - Culture Trip
    Nov 12, 2017 · Henna art on the skin is a long-standing part of Moroccan culture. A tradition often associated with wedding rituals and other important celebrations.
  70. [70]
    Berber Culture in Morocco: Traditions, Language, and Way of Life
    In Berber communities, communication is more than just spoken words—it is also expressed through oral traditions, poetry, and storytelling. Epic tales of ...
  71. [71]
    Moroccan Storytelling: The Art of Oral Traditions and Tales
    Oct 17, 2023 · Moroccan storytelling, or 'hakawati,' is an ancient tradition preserving history and culture, with diverse themes and deep historical roots.
  72. [72]
    Species of the Devonian aulacopleurid trilobite Cyphaspides from ...
    Jan 30, 2020 · Moroccan Lower and Middle Devonian trilobite faunas are known for their abundance and diversity, frequent occurrence of articulated specimens, ...
  73. [73]
    Gigantism, taphonomy and palaeoecology of Basiloceras, a new ...
    Jan 31, 2019 · Devonian non-ammonoid cephalopods from the Tafilalt of Morocco have long been treated only cursorily by researchers, despite the intense ...
  74. [74]
    Evidence for a parasitic outbreak on the shelf of northern Gondwana
    Here, we present an analysis of crinoid-sclerobiont associations from the Lower Devonian of the famous locality at Hamar Laghdad in Morocco, aiming to ...
  75. [75]
    Fossil‐Lagerstätten, palaeoecology and preservation of ...
    Two fields of research concerning the palaeontology of the Devonian in Morocco have been explored only rarely: Fossil‐Lagerstätten and taphonomy. The term ...
  76. [76]
    (PDF) Diversity and palaeoecology of Early Devonian invertebrate ...
    Aug 9, 2025 · We examined 3376 specimens belonging to 158 species and their stratigraphic distribution. The quantitative data sets were analysed for alpha ...
  77. [77]
    Spatial distribution of oncocerid cephalopods on a Middle Devonian ...
    Feb 18, 2020 · Gigantism, taphonomy and palaeoecology of Basiloceras, a new oncocerid genus from the Middle Devonian of the Tafilalt (Morocco). Swiss J ...
  78. [78]
    (PDF) Devonian conodont and ammonoid succession of the eastern ...
    Aug 8, 2025 · Devonian conodonts and ammonoids occurring in association in the Ouidane Chebbi section of the eastern Tafilalt (Anti-Atlas, Morocco) are ...
  79. [79]
    Middle and Late Devonian paleogeography of the eastern Anti-Atlas ...
    Apr 17, 2021 · The dominant paleogeographic feature is the T-shaped Tafilalt Platform which, in spite of common unconformities and hiatuses, provides the best- ...Paleogeography · Tafilalt Basin · Tafilalt Platform<|separator|>
  80. [80]
    Tahiri Museum Of Fossils And Minerals (2025) - All You ... - Tripadvisor
    Rating 4.3 (3) Between Erfoud and Rissani, the Tahiri museum displays an incredible variety of Moroccan fossils. It also has a shop that sells an wide variety of souvenirs for ...Missing: Alnif | Show results with:Alnif
  81. [81]
    Ihmadi Trilobites Centre (2025) - All You Need to Know ... - Tripadvisor
    Rating 4.8 (25) The Ihmadi Trilobites Centre offers fossil hunting, a museum, and learning about geology. Visitors can extract trilobites and see rock carvings.
  82. [82]
    MARS2013 Morocco Mars Analog Simulation | OeWF
    An integrated Mars analog field simulation in the northern Sahara near Erfoud, Morocco in the framework of the PolAres research programme.
  83. [83]
    [PDF] THE MARS2013 MARS ANALOG MISSION IN MOROCCO. G ...
    The fields of research for the experiments were geology, human factors, astrobiology, robotics, telescience and general exploration and operations research.
  84. [84]
    Simulating Mars on Earth | Astrobiology - Mary Ann Liebert, Inc.
    The area near Erfoud, Morocco, is considered to be a relevant proxy for various types of geological features of Mars and possesses a diversity of paleo(micro) ...
  85. [85]
    Self-driving rovers tested in Mars-like Morocco - ESA
    Dec 19, 2018 · Robots invaded the Sahara Desert for Europe's largest rover field test, taking place in a Mars-like part of Morocco.
  86. [86]
    The MADMAX data set for visual‐inertial rover navigation on Mars
    Mar 19, 2021 · They were deployed in a 40-week field test in the Moroccan desert, close to the city of Erfoud, located in the northern Sahara during November ...
  87. [87]
    Robots Invade the Mars-Like Moroccan Desert in the Name ... - Space
    Feb 24, 2019 · The venue for the field tests was a site near Erfoud operated by the Ibn Battuta Centre in Marrakesh. Engineers tested the rovers' automated ...
  88. [88]
  89. [89]
    Scientific results and lessons learned from an integrated crewed ...
    Mars analogue research is an important topic both in the preparation and result interpretation of robotic exploration, as well as to support future manned Mars ...
  90. [90]
  91. [91]
    The Mummy (1999) - Filming & production - IMDb
    Filming locations · Djemaa el Fna, Marrakech, Morocco · Dormant Volcano, Erfoud, Morocco · Arizona, USA · Ait Benhaddou, Morocco · The Historic Dockyard Chatham, ...
  92. [92]
    The Mummy Film Locations - Jaya Travel & Tours
    If you recognize this place, it's probably because some of the most epic films in cinema history have been filmed here. James Bond, Gladiator, Game of Thrones, ...
  93. [93]
  94. [94]
    Morocco sees record revenue from foreign film productions in 2023
    Aug 21, 2024 · Revenue from foreign film productions in Morocco reached a record high of 1.109 billion dirhams in 2023, marking the highest figure since 2015.
  95. [95]
    Morocco's Cinema City | AramcoWorld
    Sep 1, 2017 · The town of Ouarzazate is viewable in the distance as seen from the Kindom of Heaven movie set at CLA Studios. Boat built for the filming of Ben ...
  96. [96]
    Cinema in the Desert: Behind the Film Industry's Scramble for Morocco
    Feb 17, 2024 · The film industry's growing interest in Morocco has been a boon for the country, boosting tourism and creating thousands of jobs. Morocco ...Missing: Erfoud | Show results with:Erfoud
  97. [97]
    Vulnerability of Water Resources to Drought Risk in Southeastern ...
    Water resources in Morocco have been severely influenced by climate change and prolonged drought, particularly in the pre-Saharan zone.3. Results · 3.6. Land Use And Land Cover... · 4.1. Drought Evolution In...
  98. [98]
    Moroccan Groundwater Resources and Evolution with Global ...
    Over-pumping and over-utilization of fertilizers has led to groundwater degradation (high levels of electrical conductivity, total dissolved solids, chloride ...
  99. [99]
    [PDF] Morocco's experience in loss and damage management - UNFCCC
    The prolonged drought of the 1980s in Morocco led to the partial desiccation of over 500,000 date palms, with production levels ranging from 12,000 tonnes in ...
  100. [100]
    The Case of the Wadi Ziz Watershed (South-Eastern Morocco) - MDPI
    The objective of this work is the isotopic characterization and the elaboration of the local meteoric water line of the rainwater of the Ziz watershed.
  101. [101]
    (PDF) Vulnerability of Water Resources to Drought Risk in ...
    May 2, 2025 · The Ziz watershed faces increasing pressure due to the high demographic growth, increased demand for water, excessive groundwater consumption, ...Missing: sand encroachment
  102. [102]
    New World Bank Program in Morocco Supports Efforts to Boost ...
    Jul 24, 2023 · Water scarcity imposes significant economic constraints, which are ... threshold of 500 cubic meters of water per person per year by 2030.Missing: capita Tafilalet<|separator|>
  103. [103]
    (PDF) Vegetation Monitoring of Palm Trees in an Oasis Environment ...
    Mar 10, 2025 · Morocco has lost more than 2/3 of its oases during the past century due to water scarcity, succession of drought periods, climate change and ...
  104. [104]
    [PDF] Vulnerability of Water Resources to Drought Risk in Southeastern of ...
    Aug 2, 2023 · The land use change in the Ziz River Basin has significant consequences for the environment and the people living in the area. The causes of ...Missing: flash sand encroachment
  105. [105]
    Climate changes adaptation project in oasis zones – PACC-ZO
    Apr 1, 2021 · The overall objective of project is to improve the adaptability of populations in oasis areas in the face of climate change.Missing: Erfoud | Show results with:Erfoud
  106. [106]
    [PDF] Climate Risk Country Profile: MOROCCO
    Minimum night temperatures increased by 0.39°C per decade, while maximum day temperatures rose more rapidly, at 0.52°C per decade. The largest increases in ...
  107. [107]
    Morocco: Solar energy used to power desalination plant in the desert
    Jul 12, 2024 · A desalination plant powered by solar energy has been commissioned in Morocco to irrigate a 38-hectare ecological plantation in the desert.
  108. [108]
    Contribution of Traditional Foggaras to Climate Change Ecoresilient ...
    Apr 14, 2018 · Contribution of Traditional Foggaras to Climate Change Ecoresilient Modern Water Management Systems in MENA. March 2018. DOI:10.13140/RG.2.2 ...
  109. [109]
    Nature conservation in the Draa Basin (Morocco): History, present ...
    4.4. Climate change effects on the Draa Basin. In the past four decades, a trend of increasing temperatures coupled with a decreasing precipitation was ...<|separator|>
  110. [110]
    A Drive to Save Saharan Oases As Climate Change Takes a Toll
    Dec 12, 2016 · The khettaras and renovated irrigation canals will provide drinking water for oasis inhabitants and will also allow locals to boost date ...Missing: Erfoud | Show results with:Erfoud
  111. [111]
    (PDF) Prodromes of Desertification in the Oasis of Tafilalet (Morocco ...
    In this chapter, the authors analyse in a case study the fight against the exodus from the Oasis of Tafila-let in Morocco. After an inventory of environmental ...
  112. [112]
    Detecting desertification in the ancient oases of southern Morocco
    Nov 8, 2023 · We present a new and open-source machine-learning workflow for detecting desertification using satellite data.