Geography of underground co-location data centers

Schematic of the DEAC Grizinkalns Data Centre – Source:

The list below identifies underground data centers located around the globe that are designed to serve multiple tenants (co-location) versus solely one business or organization. Given the wide ranging of threats to data resources from climate change, cyber attacks, malware, rising seas, terrorism, ransomware, weather, and war; governments, businesses, financial institutions, and other organizations need to have safe and secure places to retain primary and/or backup data for their operations.

The Bunker 2 – Source:

Properly designed and situated, subterranean data centers offer a number of benefits compared to surface facilities particularly when it comes to climate, weather, terrorism, and war. If fact, the adaptive reuse of military-grade bunkers and abandoned mines have proven to be successful in many instances. Of the list provided below, eight (8) were originally bunkers. Furthermore, another nine (9) are located in former mines.

As can be seen from the list, the western half of Missouri and nearby parts of Kansas lead the way in the United States for locating underground data centers with seven (7) such facilities. Former underground limestone mines seem to be particularly well suited for data centers.

As always, any additions, suggestions, or corrections are most welcome. In the case of several underground data centers not included in the list below, information is unclear whether they were actually built or if they remain in operation. These include the Strataspace and Olive Mountain data centers in Kentucky and Dataville in Nova Scotia.

Gui’an Seven Star Data Center – Source:


Guizhou, China – Gui’an Seven Star Data Centre (2020) = 323,000 square feet


Pori, Finland – The Rock Data Centre (2014) = 91,500 square feet


Paris, France – Scaleway Data Centre = 21,500 square feet/85′ below ground


Afula, Israel – under development

Jerusalem, Israel – Oracle Data Centre (2021) = 460,000 square feet/164′ below ground

Petah Tikva, Israel – GTR Data Centre (2023) = 51,700 square feet


Iglesias, Sardinia, Italy – Digital Metalla Data Centre = under development


Amman, Jordan – The Bunker (2019) = 46,300 square feet/ 50′ below ground


Riga, Latvia – DEAC Grizinkalns Data Centre (2018) = 4,300 square feet/40′ below ground


Luxembourg City, Luxembourg – European Data Hub = 59,200 square feet/65′ under ground


Maloy, Norway – Lefdal Mine Data Centre (2016) = 1,290,000 square feet/75′ below ground

Stavanger, Norway – Green Mountain Data Centre DC-1 = 242,000 square feet


Stockholm, Sweden – Bahnhof Pionen Data Centre (2008) = 10,800 square feet/100′ below ground

Schematic of Fort Knox I and II – Source:


Lucerne, Switzerland – Datarock = 50′ below ground

Lucerne, Switzerland – EWL Data Centre (2020) = 18,300 square feet

Saanen-Gstaad, Switzerland – Mount 10 (Swiss Fort Knox I and II) = ?

Zurich, Switzerland – GIB Data Centre -8142 = ?

United Kingdom

Lincoln, England, UK – SmartBunker Data Centre (2000) = 30,000 square feet

London (Sandwich), England, UK – The Bunker 2/Sandwich Data Centre (2004) = 130,000 square feet – (former air radar station)

London (Thatcham), England, UK – The Bunker 1/Newbury Data Centre (1994) = ?

InforBunker diagram – Source:

United States

Branson, Missouri – The Mountain Data Center (2007) = 300,000 square feet/165′ below ground

Des Moines, Iowa – The InfoBunker (2006) – 65,000 square feet/six to 50′ below ground

Houston, Texas – The Bunker = 40,000 square feet

Kansas City, Missouri – Iron Mountain Data Center = 50,000 square feet and 110′ below ground

Kansas City, Missouri – SubTropolis/LightEdge Data Center = 60,000 square feet

Kansas City, Missouri – SubTropolis/SubTech Data Center = 40,000 square feet

Kansas City, Missouri – SubTropolis Data Center = 400,000 square feet

Kansas City (Lenexa, KS), Missouri – Cavern Technologies Data Center (2007) = 3,000,000 square feet/125′ below ground

Pittsburgh (Boyers), Pennsylvania – Iron Mountain WPA-1 Data Center = 130,000 square feet/220′ below ground

Springfield, Missouri – Bluebird Underground Data Center = 76,000 square feet/85′ below ground


This entry was posted in adaptive reuse, architecture, atomic age, business, commerce, Communications, ecommerce, economic development, engineering, geography, Geology, government, history, infrastructure, internet, land use, logistics, military, Mining, planning, product design, spatial design, Statistics, technology, topography, tunnels, zoning and tagged , , , , , , , . Bookmark the permalink.

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