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  2. Dulce Base - Wikipedia

    en.wikipedia.org/wiki/Dulce_Base

    Dulce Base is the subject of a conspiracy theory claiming that a jointly-operated human and alien underground facility exists under Archuleta Mesa on the Colorado–New Mexico border near the town of Dulce, New Mexico, in the United States. [1] Claims of alien activity there first arose from Albuquerque businessman Paul Bennewitz. [2]

  3. Cheyenne Mountain Complex - Wikipedia

    en.wikipedia.org/wiki/Cheyenne_Mountain_Complex

    The Cheyenne Mountain Complex is a United States Space Force installation and defensive bunker located in unincorporated El Paso County, Colorado, next to the city of Colorado Springs, [2] at the Cheyenne Mountain Space Force Station, [a] which hosts the activities of several tenant units.

  4. Underground base - Wikipedia

    en.wikipedia.org/wiki/Underground_base

    An underground base is a subterranean facility used for military or scientific purposes. Examples are: Cheyenne Mountain Complex; Chiashan Air Force Base; Iranian underground missile bases; Raven Rock Mountain Complex; Zeljava Air Base; There may be more than 10,000 underground military facilities worldwide. [1]

  5. Station box - Wikipedia

    en.wikipedia.org/wiki/Station_box

    A schematic view of a station box. A station box is a term in the construction industry: It describes a box-like underground structure for a transportation system, for example a metro or tube station. [1] Station boxes are built in two methods – "top-down" or "bottom-up".

  6. Missile launch facility - Wikipedia

    en.wikipedia.org/wiki/Missile_launch_facility

    The La Coupole facility is the earliest known precursor to modern underground missile silos still in existence. It was built by the forces of Nazi Germany in northern Occupied France, between 1943 and 1944, to serve as a launch base for V-2 rockets. The facility was designed with an immense concrete dome to store a large stockpile of V-2s ...

  7. Subsurface utility engineering - Wikipedia

    en.wikipedia.org/wiki/Subsurface_utility_engineering

    Subsurface utility engineering (SUE) refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation ...

  8. Underground hangar - Wikipedia

    en.wikipedia.org/wiki/Underground_hangar

    The largest underground hangar complex in former Yugoslavia, with enough space for 80 MiG-21s. There was intercept and surveillance radar "Celopek" at nearby mountain Gola Plješevica (1648 m). Object "Morava" at Slatina Air Base, [20] located at Pristina International Airport. The second largest underground hangar complex in Yugoslavia.

  9. Kirtland Underground Munitions Maintenance and Storage ...

    en.wikipedia.org/wiki/Kirtland_Underground...

    The complex, which opened in 1992, is located on a 54-acre site at Kirtland Air Force Base in Albuquerque, New Mexico, United States, under the control of the Air Force Global Strike Command [1] It is operated by the 898th Munitions Squadron (898 MUNS) and the 377th Weapons Systems Security Squadron (377 WSSS). The facility is state of the art ...