Underground Bases
Groom Lake/Area 51/Dreamland
Major UFO research facility at 37°20' N 115°50' W including Papoose Range (S-4), Cockeyed Ridge, and S-66 at 29 levels deep, 11,300 feet
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Groom Lake, known worldwide as Area 51 or Dreamland, represents the most famous secret military installation, extending 11,300 feet deep with 29 levels at the S-66 section. The complex includes multiple underground facilities at Papoose Range (S-4), Cockeyed Ridge, and the main Groom Lake operations center. This installation serves as the primary research and development site for advanced aerospace technology and alleged extraterrestrial-related programs.