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SubTropolis

SubTropolis is the world's largest underground business complex, carved from a former limestone mine in the bluffs above the Missouri River in Kansas City, Missouri. Spanning a total area of approximately 55 million square feet across 1,260 acres, it provides over 9 million square feet of leasable, climate-controlled space located about 150 feet below the surface. Developed in the 1960s by Lamar Hunt, founder of the Kansas City Chiefs, through his company Hunt Midwest Real Estate Development, SubTropolis opened for business in 1964 and has since become a hub for diverse industries seeking secure, energy-efficient facilities.^[1]^[2]^[3] The complex originated from a limestone mine that began operations in the 1940s and extracted Bethany Falls limestone, a durable stone used in local historic structures such as the Nelson-Atkins Museum of Art. After mining ceased, Hunt envisioned repurposing the vast subterranean space for commercial use, clearing debris and excavating further to create roadways, rail lines, and customizable office and warehouse areas. Today, it features 10.5 miles of illuminated roads, several miles of railroad track, 16-foot ceilings supported by natural limestone columns, and a consistent 65–68°F temperature that reduces energy costs by up to 70% compared to surface buildings. Security is enhanced by 24/7 armed guards, fire suppression systems, and its inherent isolation from weather, natural disasters, and urban threats. In 2025, it was featured in an ESPN documentary, highlighting its role in storing Kansas City Chiefs archives.^[1]^[3]^[4]^[2] SubTropolis hosts more than 50 tenants across sectors like government archiving, e-commerce, automotive, pharmaceuticals, and data storage, including the U.S. Postal Service (occupying over 500,000 square feet), the National Archives, the Environmental Protection Agency, Ford Motor Company for vehicle storage, and NextPage for document management. Its sustainability is notable, with the underground setting minimizing the need for heating and cooling, earning ENERGY STAR certification, and serving as a model for subsurface development that lowers operational costs—rents start at around $2.25 per square foot—while supporting rapid construction of facilities up to 200,000 square feet in about 120 days. As of 2025, with over 9 million square feet of developed space and potential for expansion to 14 million square feet, SubTropolis continues to grow, attracting businesses drawn to its blend of historical ingenuity and modern utility, including recent additions like a UPS Supply Chain Solutions facility.^[1]^[3]^[2]^[5]

History

Early Mining Operations

Limestone quarrying in the Kansas City area commenced in the late 19th century, driven by the region's construction boom for buildings, roads, and infrastructure, as the area's abundant Bethany Falls limestone formation provided a durable, high-quality material ideal for such projects.^[6] The Bethany Falls limestone was exploited regionally since the late 1880s by local companies along bluffs and riverbanks, yielding stone used extensively in regional architecture and paving. The specific mine later developed into SubTropolis began operations during the Depression era in the 1930s.^[7] In the early 20th century, mining expanded through networks of tunnels using manual labor combined with mechanized blasting and drilling techniques, progressively hollowing out over 1,260 acres of subterranean void space during the mid-20th century to meet growing demand.^[8] These activities played a vital role in Kansas City's industrial development, supporting urban expansion.^[9]

Conversion to Commercial Use

In the early 1960s, Lamar Hunt, founder of the Kansas City Chiefs and a prominent real estate developer, envisioned repurposing the abandoned limestone mining voids beneath Kansas City, Missouri, into a commercial business complex through his company, Hunt Midwest Real Estate Development, Inc. This initiative addressed the growing demand for storage and light industrial space amid urban expansion in the post-World War II era, transforming the site's natural stability and vast underground expanse into an asset for warehousing and business operations. Hunt's company began leasing spaces in 1964, marking the official opening of SubTropolis as the world's first underground business park, initially attracting tenants for secure, climate-moderated storage solutions.^[8]^[10] To make the underground environment viable for commercial activities, significant engineering adaptations were undertaken during the 1960s and 1970s. These included reinforcing the existing mine structure by maintaining massive limestone pillars—typically 25 feet square and spaced 65 feet apart, with 40-foot-wide roadways—to support the ceilings and prevent collapse, while installing essential utilities such as ventilation systems with industrial fans and steel doors to ensure air quality. Fire protection measures, like sprinkler systems, were integrated, and electric-powered equipment was mandated to avoid exhaust fumes, alongside the addition of electrical wiring, lighting, and plumbing to create habitable workspaces. These modifications leveraged the site's inherent geological stability, allowing for the development of over 3 million square feet of leasable space by 1983.^[11]^[12] SubTropolis experienced steady growth throughout the late 20th century, expanding its leasable area to nearly 10 million square feet of developed space by the early 2000s, driven by demand from industries requiring protected storage. The complex's total potential encompassed up to 55 million square feet within the mined limestone deposit, with full commercial development focusing on high-value uses like warehousing and light manufacturing by the 1990s, solidifying its role as a pioneering subterranean economic hub.^[13]^[14]

Physical Description

Location and Extent

SubTropolis is situated in the bluffs north of the Missouri River in Kansas City, Missouri, specifically within the Riverside and Claycomo areas, encompassing approximately 1,260 acres (5.1 km²). This underground complex occupies a former limestone mine, leveraging the natural topography of the region for its expansive layout.^[15]^[16] The complex spans a total mined area of approximately 55 million square feet (5.1 million m²) across multiple levels, with over 10 million square feet developed and leasable as of 2025. As of 2025, approximately 8 million square feet is finished space, with potential for 6 million more. Vertically, it descends from surface entrances to depths of up to 160 feet, while horizontally, its network of tunnels stretches several miles, creating a vast subterranean grid. The scale of this development is supported by the stable limestone geology of the area.^[17]^[16]^[18]^[10] Its strategic location enhances accessibility, lying in proximity to major highways including I-435 and I-29, as well as Kansas City International Airport, which positions it within a 10-mile radius of downtown Kansas City and supports efficient logistics operations.^[18]^[19]

Geological Features

SubTropolis is excavated within the Bethany Falls Limestone Member of the Swope Formation, dating to the Pennsylvanian subperiod of the Carboniferous period approximately 300 million years ago. This formation consists of light-gray, finely crystalline limestone with mottled dark-gray spots, exhibiting high durability due to its massive, algal-origin structure and low solubility in water, which minimizes dissolution and supports long-term structural integrity for underground development.^[20] The site's natural stability derives from the 100- to 160-foot-thick overburden of limestone and associated sedimentary layers overlying the mined voids, which shields the underground spaces from surface weathering, erosion, and minor ground movements. This substantial ceiling thickness, combined with the competent nature of the Bethany Falls Limestone (typically 15- to 30-feet thick where mined, with portions left intact for support), provides stability against the low seismic hazard in the region, including potential distant effects from the New Madrid Seismic Zone, due to the thick overburden and competent rock, which reduces shaking in underground spaces compared to surface structures.^[21] The tunnels feature uniform dimensions averaging 16 to 20 feet in height and 40 feet in width, created by systematic room-and-pillar mining that preserves the rock's inherent strength and results in minimal natural water intrusion owing to the impermeable characteristics of the dense limestone, which limits groundwater percolation.^[22]^[23] Additionally, the geothermal properties of the subsurface limestone maintain a constant temperature of approximately 65°F (18°C) year-round, offering environmental benefits by reducing the need for artificial heating or cooling in the developed spaces.^[24]

Infrastructure and Operations

Transportation and Access

SubTropolis features an extensive internal transportation network comprising approximately 13 miles of lighted, wide, paved underground roads designed to accommodate vehicular traffic, including semi-trucks up to 53 feet in length. These roads follow a grid system with 40-foot-wide corridors and 16-foot-high ceilings, enabling efficient navigation for heavy vehicles and supporting daily operations for over 1,500 workers and numerous tenants. The infrastructure allows for seamless movement of goods within the complex, minimizing surface disruptions and enhancing logistical efficiency.^[10]^[18] A dedicated rail spur connects SubTropolis to the main BNSF Railway line, providing critical freight handling capabilities with more than 2 miles of internal tracks operational since the 1960s. This rail system facilitates the transport of bulk goods directly into the underground spaces, integrating with over 314 truck dock locations served by approximately 200 national truck lines. The combination of rail and road access has made SubTropolis a hub for industries requiring high-volume shipping, such as automotive storage and warehousing.^[25]^[18] Access to the facility occurs through multiple surface entrances via ramps and elevators, including the primary gateway at 8300 NE Underground Drive in Kansas City, Missouri. These entry points feature 24/7 gated security for authorized tenants, ensuring controlled yet continuous operations. The site's strategic location near Interstate 435 and Route 210 provides direct connectivity to major highways, further bolstering logistics by allowing quick integration with regional and national supply chains. Direct loading docks throughout the complex enable weather-protected transfers, optimizing inbound and outbound freight movements.^[26]^[27]^[28]^[29]

Environmental Controls

SubTropolis employs a combination of natural geological properties and engineered systems to maintain stable environmental conditions suitable for commercial operations. The underground limestone environment provides a natural baseline temperature of 65 to 70°F (18 to 21°C) year-round, leveraging the insulating effects of the rock formation to minimize fluctuations. This geothermal stability reduces the need for extensive heating or cooling, contributing to overall energy efficiency.^[10] Humidity levels feature stable low levels, typically around 40%, dehumidified as needed and remaining more stable and lower than typical surface conditions, preventing issues like mold growth while supporting occupant comfort. Ventilation systems ensure adequate air circulation and quality, featuring 15 large air portals—each 40 feet wide by 17 feet tall—located on the south, east, and north sides, along with mining-grade fans that draw in fresh air from surface entrances. To further enhance air quality, the facility mandates the use of electric forklifts, eliminating exhaust emissions from internal combustion engines.^[4]^[11] The climate control setup results in utility costs that are up to 70% lower than those of comparable surface buildings, primarily due to reduced energy demands for temperature and humidity regulation. Utility infrastructure supports these systems with robust electrical grids, municipal water supply lines for potable and operational needs, and dedicated wastewater management that handles effluent without surface discharge dependencies. Artificial lighting and HVAC systems are optimized for efficiency, independent of natural light, contributing to the facility's Energy Star 100 rating for superior energy performance.^[30]^[10]

Tenants and Economic Role

Major Occupants

SubTropolis hosts a diverse array of tenants, spanning data centers, logistics operations, light manufacturing, government agencies, archival facilities, entertainment storage, and specialized cold storage for food and pharmaceuticals. Among the data centers, LightEdge Solutions operates a major 60,000-square-foot facility equipped for mission-critical computing and cloud services, leveraging the site's natural climate control for energy efficiency. Logistics firms benefit from the complex's strategic location, serving as a first- and last-stop hub for carriers like UPS and FedEx, with dedicated spaces for distribution and warehousing that enable rapid two-day ground delivery to 90% of the U.S. population. Light manufacturing tenants, including automotive parts assembly in the "Automotive Alley" section, utilize the expansive, customizable spaces for operations such as printing, e-commerce fulfillment, and small-scale production. Government and archival uses form a significant portion of SubTropolis's occupancy, with SubTropolis dedicating over 1.7 million square feet to government, archival, and record storage across multiple tenants, including the National Archives and Records Administration's Federal Records Center, which stores millions of federal records, including paper files, photographs, and audiovisual materials, in secure, climate-controlled conditions. The U.S. Postal Service has leased space since the 1970s, operating a 520,000-square-foot Stamp Fulfillment Services facility for storing and distributing hundreds of millions of collectible stamps and philatelic items in a stable underground environment. These federal operations highlight the site's appeal for long-term preservation, supported by 24/7 armed security and consistent temperatures. Recent tenants include Google's data center, announced in 2024 with a $1 billion investment.^[31] Entertainment storage includes specialized vaults managed by Underground Vaults & Storage, which house original film reels and master prints from major Hollywood studios, preserving classics like Gone with the Wind and The Wizard of Oz in a 45,000-square-foot secure area protected from environmental hazards. Cold storage facilities cater to food and pharmaceutical needs, with recent expansions like M&M Quality Solutions' 18,757-square-foot refrigerated hub for food, supplements, and cold-chain distribution, contributing to broader refrigerated spaces exceeding 100,000 square feet for perishable goods and temperature-sensitive pharma products. As of 2025, SubTropolis maintains an occupancy rate above 90%, accommodating over 55 tenants—ranging from international corporations to regional firms—that collectively support thousands of indirect jobs through supply chains and services.^[32]

Economic Impact

SubTropolis generates over 1,500 direct jobs in Kansas City, fostering economic stability amid fluctuations in surface industries.^[22] The complex's operations bolster local GDP by enabling efficient warehousing, manufacturing, and distribution, particularly in sectors like logistics and technology. The underground environment attracts investments via reduced operational costs, including lower property taxes of approximately 30 cents per square foot compared to surface facilities.^[22] Lower energy demands—saving tenants 50-70% on bills—further enhance affordability, drawing businesses seeking cost-effective expansion without the volatility of above-ground real estate markets.^[1]^[33] SubTropolis plays a vital role in Kansas City's logistics sector, handling a significant share of regional freight and enhancing post-pandemic supply chain resilience through its central location and secure storage capabilities.^[34]^[35] Its proximity to major highways and rail lines allows access to 90% of the U.S. population within two days, supporting e-commerce growth and mitigating disruptions like those experienced during the COVID-19 crisis. Under Hunt Midwest's stewardship, SubTropolis has undergone substantial long-term development, including expansions adding approximately 3 million square feet of developed space since 2012 to accommodate tech firms and e-commerce operations.^[22] These initiatives, such as the 700,000-square-foot Class-A build-out announced in 2021, reflect ongoing investment in scalable infrastructure that drives regional economic diversification.^[35] Tenant diversity across industries further amplifies this growth by integrating varied economic activities into a cohesive underground ecosystem.

Significance and Public Perception

Unique Attributes

SubTropolis features blast-resistant construction due to its solid limestone pillars, which are six times stronger than concrete, providing exceptional structural integrity capable of withstanding significant shockwaves and natural disasters.^[36] The site's geological stability further enhances this durability, with the limestone formation offering natural support against seismic and environmental stresses. In addition, there are no major structural issues to contend with when pouring foundations because they are poured on solid rock.^[18] High-security measures distinguish SubTropolis as a fortified environment for sensitive operations, including 24/7 armed security, monitored video surveillance, biometric hand readers, and card/PIN access controls for restricted zones.^[37] Data centers within the complex benefit from EMP shielding provided by the thick limestone overburden, which naturally attenuates electromagnetic pulses and protects electronic infrastructure from disruptions.^[38]^[39] The underground setting delivers superior energy efficiency through natural insulation from the surrounding limestone, maintaining a constant temperature of 65–70°F year-round and reducing electricity usage by up to 70% compared to equivalent surface facilities.^[30] This thermal stability minimizes heating and cooling demands, lowering overall utility costs by up to 70% and correspondingly reducing the carbon footprint associated with energy consumption.^[30] SubTropolis's design supports adaptability for specialized applications, such as soundproof chambers for research and development activities that require controlled acoustic environments, leveraging the inherent noise-dampening properties of the limestone walls.^[40] Its protection from surface weather events, including hurricanes and tornadoes, has attracted secure storage solutions in a virtually disaster-proof setting.^[10]

Tours and Media Coverage

Public access to SubTropolis is primarily facilitated through self-guided drive-through tours available Monday through Friday from 6 a.m. to 6 p.m., allowing visitors to explore portions of the underground complex by car after checking in at the entrance office to view a scale model of the site.^[41]^[42] Guided tours, often arranged for groups, educational field trips, or special events, can be booked through Hunt Midwest or partnering organizations, typically involving bus or walking components that highlight the site's mining history and operational features; for example, a 2025 field trip organized by the Society for the Preservation of Natural History Collections included a 30-minute introduction followed by tours of archival storage areas.^[10]^[43] These guided experiences, such as those provided during industry conventions, emphasize the complex's unique subterranean environment and last approximately 1-2 hours, covering select miles of the 13-mile illuminated roadway network.^[44]^[45] SubTropolis has garnered significant media attention for its "underground city" characteristics, appearing in various documentaries and television features that showcase its vast scale and innovative uses. Notable portrayals include a 2015 Great Big Story episode titled "The Hidden Metropolis Beneath Kansas City," which explores the complex's infrastructure and tenants, and a 2016 NBC Sunday Today segment that delves into its daily operations and historical development from a limestone mine.^[46]^[47] Additional coverage features a 2018 PBS Sunflower Journeys episode on underground facilities, including SubTropolis's role in secure storage, and a 2006 CNBC "On the Money" report highlighting its business advantages.^[48]^[49] In 2025, an ESPN original series, "The Kingdom," prominently featured SubTropolis in episodes examining Kansas City Chiefs artifacts stored there, further amplifying its allure as a secure, climate-controlled repository.^[2] Public events at SubTropolis enhance its visibility and educational outreach, drawing visitors interested in its history and recreational opportunities. Annual events include the Groundhog Run, the world's only fully underground 10K charity race held annually since 1982, which attracts runners to the cavern's stable environment for a unique experience tied to local folklore.^[50]^[51] Educational programs, such as guided field trips on the site's mining origins and archival preservation, are offered to schools and professional groups, providing insights into the 270-million-year-old limestone formation and its transformation into a business hub.^[45] Other attractions open to the public include Bird's Botanicals, an exotic orchid garden accessible on Tuesdays, and paintball facilities, contributing to modest but steady visitor interest in the complex's non-commercial spaces.^[52]^[42] Recent media coverage in 2025 has spotlighted SubTropolis's recovery in visitor engagement following the COVID-19 pandemic, alongside its growing role in hosting tech tenants like data centers. Articles in local outlets, such as a Kansas City Star piece on the Chiefs' underground treasures, underscore renewed interest in secure storage solutions amid economic rebound, while features on expansions at the SubTropolis Technology Center highlight tenants like LightEdge Solutions for managed IT services.^[53]^[40] This coverage portrays the site as a resilient hub blending historical intrigue with modern technological applications, boosting its profile in post-pandemic tourism narratives.^[3]

References

[1]
SubTropolis: The Business Complex Buried Under Kansas City
Feb 4, 2015 · The underground industrial park known as SubTroplis opened for business in 1964 in an excavated mine below Kansas City, Mo., attracting tenants ...
[2]
Catch SubTropolis, Hunt Midwest in ESPN original 'The Kingdom'
Sep 22, 2025 · Today, SubTropolis has far exceeded even Lamar Hunt's grand vision, boasting more than 9 million square feet of leasable space with plans to ...Missing: developer | Show results with:developer
[3]
How Missouri businesses are looking below the surface for new ...
Jul 9, 2024 · Now, SubTropolis has over 8 million square feet of finished building space. Currently, another 6 million square feet is available for ...<|separator|>
[4]
Hidden city - JPM - The Journal of Property Management
Located 8 miles northeast of Kansas City's downtown, SubTropolis is nestled 150 feet below ground in a former Bethany Falls limestone mine.Missing: facts history
[5]
The Types Of Things Lurking Underground In Kansas City's Caves
Sep 17, 2014 · ... limestone, known as the Bethany Falls Limestone formation, is what attracted mining operations in the late 1800s and early 1900s. "Some of ...
[6]
curiousKC | How Bethany Falls Limestone Helped Build Kansas City
Jun 13, 2022 · In 1833, riverboats docked at the rock shelf that would later be identified as Bethany Falls limestone, according to a lecture given by Richard ...
[7]
Welcome to SubTropolis, a Giant Underground Industrial Park and ...
Dec 25, 2020 · As CNN Business once reported, the project came into being as mining operations dropped off after the 1940s, leaving a vast and empty space ...
[8]
In Kansas City Area, Up to Date Is Down to Earth
Aug 20, 2000 · ... mining operation of Hunt Midwest continues to extract two million tons of rock a year from part of the site. Thomas E. Steadman, vice ...
[9]
SubTropolis underground business complex | Hunt Midwest
Explore SubTropolis, the world's largest underground business complex in Kansas City, Missouri. Discover energy-efficient, climate-controlled, and secure ...What Is Subtropolis? · Subtropolis Technology... · As Featured On
[10]
Business Goes Underground - Progressive Engineer
At various locations in the Midwest and East, companies are converting spent limestone mines to subsurface business parks offering a host of advantages.
[11]
A Legacy of Development - Hunt Midwest
Established by Lamar Hunt, founder of the Kansas City Chiefs, Hunt Midwest is a Kansas City‐based real estate development company with more than $3 billion ...
[12]
Underground Development in Kansas City Still Going Strong - Globest
Sep 12, 2000 · Two others, Space Center Executive Park and Hunt Midwest SubTropolis,combine for nearly 10 million square feet of underground storage andoffice ...
[13]
Subtropolis | ULI Case Studies
Subtropolis ... The largest underground business complex in the world, with more than 4.5 million square feet of leasable space and 10 million square feet of ...
[14]
Travis Kelce's Secret Archive in a Cave 150 Feet Below Ground ...
Aug 23, 2025 · The Kansas City Chiefs tight end has a box of items preserved in SubTropolis, a 1260-acre space created through the mining of limestone.
[15]
SubTropolis, U.S.A. - The Atlantic
May 15, 2010 · More than 10 percent of the industrial space in greater Kansas City is located “down under,” covering about 25 million square feet—an area ...<|control11|><|separator|>
[16]
Two Companies Expand Underground in Missouri's Hunt Midwest ...
May 26, 2020 · The Hunt Midwest SubTropolis is a 55,000,000 square foot manmade limestone cave that has been renovated into an underground business complex ...Missing: size | Show results with:size
[17]
[PDF] Subtropolis Kansas City, Missouri - ULI Case Studies
Subtropolis is the world's largest underground business complex, with 4.5 million sq ft of leasable space, housing office and industrial uses in a limestone ...
[18]
SubTropolis - World's Largest Underground Business Complex
In fact, because of SubTropolis, about 10 percent of Kansas City's commercial real estate is underground. More than 1,700 people work here - and that's not all.<|control11|><|separator|>
[19]
Bethany Falls - Geolex - National Geologic Map Database
Aug 28, 2025 · Until 1932 Bethany Falls limestone was included in the Kansas City (which USGS treated as a formation in Missouri and Iowa and as a group in ...
[20]
THE KANSAS CITY UNDERGROUND EXPERIENCE - ScienceDirect
Kansas City is serving as a proving ground for underground development. Fortunately, Kansas City has a very extensive ledge of limestone located near the ...<|control11|><|separator|>
[21]
SubTropolis - Wikipedia
It was developed by late Kansas City Chiefs owner Lamar Hunt via Hunt Midwest Real Estate Development, Inc., with the trademarked phrase World's Largest ...
[22]
SubTropolis Offers Deep Reasons to Locate Underground
More than 50 businesses lease space within SubTropolis, which has about five million square feet of space built out and room for another eight million or so, ...
[23]
Bethany Falls Limestone (Missourian) Sedimentation and ...
Sep 20, 2019 · The Bethany Falls Limestone is a 15-30-ft-thick shelf deposit within lower Missourian rocks of the Mid-Continent region.
[24]
Subtropolis Underground Warehousing Facility, Kansas City
Temperature stability. Because the facility is underground the ambient temperature is in the range of 18 to 21 degrees Celsius year-round. · Security.Missing: geological ceiling thickness
[25]
Subtropolis, Missouri - The Center for Land Use Interpretation
Inside are 4.5 miles of paved roads, 2.1 miles of rail spurs, 350 truck docks, 1,500 parking spaces, and around 50 companies that lease space, employing more ...Missing: 53 | Show results with:53
[26]
SubTropolis, 8300 NE Underground Dr, Kansas City, MO 64161, US
Get more information for SubTropolis in Kansas City, MO. See reviews, map, get the address, and find directions.Missing: entrance spur logistics tons
[27]
Records Storage & Archives at SubTropolis | Hunt Midwest
SubTropolis houses 1.7 million square feet of government, archival, and record storage tenants who enjoy consistent climate control and 24/7 armed security.Subtropolis Houses 1.7... · Gsa Level Iv Secured... · Redundant Power With Low Kw...
[28]
Underground Vehicle Storage in Kansas City, MO near You
Security Department Patrolling 24/7; Restricted Access by Appointment ... Access to SubTropolis Storage. Access is by advance appointment only (Please ...
[29]
The future of cold storage goes underground - FreightWaves
Oct 28, 2025 · Despite being underground, the facility has direct access to both truck and rail docking. The inbound-outbound connectivity leverages Kansas ...Missing: entrances | Show results with:entrances
[30]
Pollution Prevention Opportunity Assessment, United States Postal ...
... 10 million square feet of developed space located 100 feet underground. ... BROCHURE FROM SUBTROPOLIS COMPLEX '•*• SUBTROPOLIS V. ------- Hunt Midwest ...<|control11|><|separator|>
[31]
Sustainability - SubTropolis - Hunt Midwest
Discover the environmental benefits of SubTropolis for energy-efficient underground industrial space. Reduce operating costs, enhance productivity, ...<|separator|>
[32]
Pharmaceutical and e-commerce companies continue to thrive in ...
Jun 17, 2020 · SubTropolis was created through the mining of a 270-million-year-old limestone deposit creating a 1,200-acre real estate development. In the ...
[33]
Why Kansas City? - SubTropolis Technology Center
The U.S. Geological Survey map shows the Kansas City area to be in relatively little threat to significant activity for earthquakes. STC - Kansas City Tornado ...Missing: seismic | Show results with:seismic
[34]
https://huntmidwest.com/industrial-space-for-lease/ecommerce-space-for-lease/
[35]
subtropolis ecommerce space for lease - Kansas City - Hunt Midwest
perfect for e-commerce operations. Location. Location. Location. (SubTropolis).
[36]
Hunt Midwest SubTropolis Is Growing Underground
Apr 14, 2021 · Hunt Midwest recently announced plans to build-out an additional 700000 sq. ft. of Class-A space in SubTropolis, near Kansas City, Missouri.Missing: Lamar engineering
[37]
SubTropolis renews, expands leases - Kansas City Business Journal
Mar 22, 2010 · Last year, Hunt Midwest announced that it was beginning a roughly 5 million-square-foot expansion of SubTropolis. The complex, which currently ...
[38]
https://stckc.com/kansas-city-data-center-subtropolis-technology-center/subtropolis-technology-center-protection/
[39]
SubTropolis Technology Center
STC IS A MISSION CRITICAL CAMPUS FOR PURPOSE-BUILT DATA CENTERS. SubTropolis Technology Center is a purpose-built data center campus located in Kansas City.
[40]
stc protection - Kansas City - SubTropolis Technology Center
6x stronger ...
[41]
[PDF] LightEdge Kansas City Facility
STC is 125 feet underground in a solid limestone mine 6X stronger than concrete. It's naturally hardened for disaster protection, is EMP safe,and has a ...Missing: shielding | Show results with:shielding
[42]
Sustainability - SubTropolis, the world's largest green roof.
Hunt Midwest SubTropolis sets the standard for subsurface business real estate developments. Check our some of our other real estate developments at HuntMidwest ...Pharmaceutical · Automotive Alley · Record Storage
[43]
Subtropolis: Business Beneath the Ground
SubTropolis was the brainchild of longtime Kansas City Chiefs owner Lamar Hunt, who moved the Dallas Texans to Kansas City while creating the AFL in the 1960s.
[44]
Deep beneath the surface of Kansas City… there's an entire city you ...
Apr 6, 2025 · Subtropolis is basically disaster proof. Other selling point, subtropolis is always 65 degrees, always. What better place than to put a room ...
[45]
SubTropolis (2025) - All You Need to Know BEFORE You Go (with ...
Rating 4.5 (8) SubTropolis is the World's Largest Underground Business Complex, with over 6,500,000 sq ft of leasable space, 8.2 miles of roads, and 2.1 miles of railroad ...
[46]
SubTropolis - Atlas Obscura
Jun 27, 2012 · SubTropolis. The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri. Kansas City, Missouri.
[47]
SubTroplis Field trip itinerary - spnhc 2025 - The University of Kansas
10:00 am - 12:00 pm - Bus drive through SubTropolis highlighting some of the other storage tenants and stops at: National Archives and Records Administration ( ...
[48]
See KC's SubTropolis: World's Largest Underground Business ...
a cave created through the mining of a 270-million-year-old ...
[49]
Field Trips - spnhc 2025 - The University of Kansas
Join us for a unique tour of the SubTropolis underground cave storage environment in Kansas City. With over 8,100,000 square feet of leasable space, 10.5 miles ...Missing: guided | Show results with:guided
[50]
The Hidden Metropolis Beneath Kansas City - YouTube
Nov 4, 2015 · ... films spotlight the extraordinary hiding in everyday life. We ... documentaries that surprise, inspire, and remind us just how ...
[51]
Go Inside SubTropolis - NBC Sunday Today Show | October 16, 2016
Mar 8, 2017 · Go inside SubTropolis, the underground city housing Hollywood treasures, 'cool' companies. Under a hill in Kansas City lies a massive ...Missing: Google Cerner FedEx Archives USPS
[52]
KTWU Sunflower Journeys | 3113:Underground and Underwater
Dec 20, 2018 · We visit SubTropolis, an underground facility in Kansas City; we learn about the dangers of aquatic invasive species like Asian Carp and Zebra Mussels.Missing: coverage | Show results with:coverage
[53]
SubTropolis - CNBC "On the Money" (2006) - YouTube
Aug 3, 2012 · Here's a CNBC "On the Money" segment on SubTropolis from 2006. Nice job, Dick Ringer. SubTropolis is ENERGY STAR certified and is the ...<|control11|><|separator|>
[54]
SubTropolis' Annual Kansas City Groundhog Run Is Fully ... - Thrillist
Jan 25, 2023 · The Midwest's Coolest Charity Race Lurks Beneath Kansas City's Streets. SubTropolis's annual Groundhog Run is the world's only fully underground 10K.
[55]
Kansas City Underground | Visit KC
Tours at Holladay Distillery, the oldest still-standing distillery west of the Mississippi, include a stop in an ancient cave—a hand-dug space constructed in ...
[56]
SubTropolis secrets: Chiefs' buried treasures in Kansas City
Oct 24, 2025 · Some 55 business comprise this 55,000,000 square-foot labyrinth, a layout connected by 11.6 miles of burrowed-out, paved roads and 2.1 miles of ...