D.U.M.B. DATABASE — PUBLIC INTEREST RESEARCH
NOTICE TO VISITORS
Database Under Active Development
The D.U.M.B. Database is a public interest research platform in its initial build phase, and the record is expanding. New facility records are published as documentation is reviewed and independently corroborated.
HELP US EXPAND THE RECORD
We are actively seeking publicly documented underground facilities, tunnel projects, and hardened installations worldwide. If you know of a location supported by official documents, historical records, press reporting, or aerial imagery — we want to hear from you. Corrections and feedback on published records are welcome through our contact page.
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DeepUndergroundMilitaryBases.com
The Global Archiveof UndergroundFacilities
A comprehensive public record resource documenting military and government underground infrastructure worldwide.
Our Mission: Transparency in Defense Infrastructure
Bringing accountability and transparency to America's hidden military infrastructure through comprehensive documentation and citizen oversight.
Documentation
Comprehensive inventory of documented underground bases, deep tunnel projects, and military facilities spanning 51 countries worldwide.
Transparency
Revealing taxpayer costs, access authorization, and the true scope of America's underground military network.
Accountability
Providing citizen education of government projects and defense installations funded by taxpayers.
Countries in Database
Research Categories
Confirmed Facility Record
Database Launched
Featured Underground Facilities
Explore documented military installations, command centers, and research facilities hidden beneath American soil.
Database Categories
Underground Facilities
Bunkers, shelters, and subterranean government installations
Deep Tunnel Projects
Major tunneling operations and underground transit infrastructure
Military Bases
Active and decommissioned military installations worldwide
Reported — Under Review
Recently reported facilities pending editorial verification
The Greenbrier Bunker
Project Greek Island — Congressional Relocation Facility
DECOMMISSIONED — PUBLIC MUSEUM
View Facility Record →Additional facility records are published following comprehensive editorial review and independent corroboration.
Help Us Document America's Hidden Infrastructure
Do you have publicly available information about underground facilities, tunnel projects, or military installations not yet in our database? Submit it to our editorial team for review.
Location Information
Country, region, state, or general area. Approximate coordinates from published maps or public satellite imagery.
Visual Documentation
Public domain photographs, satellite imagery from USGS or published sources, and architectural drawings from declassified or publicly available records only.
Historical Records
Construction timelines, budget information, operational history, and unclassified documents.
Recent Discoveries
Stay updated with the latest findings, unclassified information, and contributor intelligence about America's underground military network.
The D.U.M.B. Database is currently in an active expansion phase. New facility records and research updates are published following comprehensive editorial review and independent corroboration.