Freedom of Information Act requests and declassified documents related to underground facilities and government infrastructure projects.
We research potential underground facilities through budget documents, contracting records, and news reports to identify targets for FOIA requests.
We file carefully crafted FOIA requests to multiple agencies including DoD, DHS, GSA, and Corps of Engineers for construction and operational details.
All released documents are analyzed, verified, and cross-referenced with other sources before being incorporated into our database.
Detailed specifications and costs
Facility layouts and blueprints
Congressional appropriations
Status and activity summaries
Browse our complete collection of FOIA documents, search by agency or facility, and download verified government records about underground infrastructure.
Search through thousands of declassified documents, FOIA releases, and government records related to underground facilities
Department of Defense contract documents for the modernization of NORAD facilities at Cheyenne Mountain, including specifications for deep underground construction and hardening against electromagnetic pulse...
Architectural blueprints and facility layouts for the Mount Weather Emergency Operations Center, showing underground levels, communication systems, and emergency protocols. Heavily redacted sections...
Army Corps of Engineers budget documentation for underground construction projects at Denver International Airport, including tunnel systems, baggage handling, and emergency facilities...