D.U.M.B. DATABASE — PUBLIC INTEREST RESEARCH
NOTICE TO VISITORS
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
A comprehensive public record resource documenting military and government underground infrastructure worldwide.
Bringing accountability and transparency to America's hidden military infrastructure through comprehensive documentation and citizen oversight.
Comprehensive inventory of documented underground bases, deep tunnel projects, and military facilities spanning 51 countries worldwide.
Revealing taxpayer costs, access authorization, and the true scope of America's underground military network.
Providing citizen education of government projects and defense installations funded by taxpayers.
Countries in Database
Research Categories
Confirmed Facility Record
Database Launched
Explore documented military installations, command centers, and research facilities hidden beneath American soil.
Bunkers, shelters, and subterranean government installations
Major tunneling operations and underground transit infrastructure
Active and decommissioned military installations worldwide
Recently reported facilities pending editorial verification
Project Greek Island — Congressional Relocation Facility
DECOMMISSIONED — PUBLIC MUSEUM
View Facility Record →Additional facility records are published following comprehensive editorial review and independent corroboration.
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.
Country, region, state, or general area. Approximate coordinates from published maps or public satellite imagery.
Public domain photographs, satellite imagery from USGS or published sources, and architectural drawings from declassified or publicly available records only.
Construction timelines, budget information, operational history, and unclassified documents.
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.
Join researchers and transparency advocates working to document America's underground infrastructure through public records and open-source research.
Analyze satellite imagery, investigate public records, and contribute to facility documentation efforts.
Share publicly available information. Contact information provided is used only for follow-up and is never published.
Support transparency efforts through advocacy, sharing information, and spreading awareness.
Every piece of information brings us closer to full transparency. Join thousands of Americans demanding accountability for taxpayer-funded underground projects.