e-mail Richard Sauder

I hope that over time this page will become the largest underground base and tunneling links page on the internet. It will start with a relative handful of links and grow steadily. Please send me links to interesting underground sites that are not listed here (and also notify me of any dead links)! I have a particular interest in "secret" underground bases and tunnels. Scroll down the page to view the available categories.

Lector caveat: The material in the links below spans the gamut in believability from the factual, and demonstrably true, to the scarcely credible, if not downright incredible. That is to say, not every word in every one of these links is necessarily true. In this world, there are hard facts and there are also flights of fancy. You, the reader, must exercise your humble faculties of discernment and God-given horse sense to carefully sift fact from fable! 'Nuff said. Let's go underground.

U.S. Military & NORAD

NSA in the Vaults and Tunnels Under the Canberra Embassy
Regional SIGINT Operations Center Kunia
Beneath the Pineapple Fields of Kunia, Hawaii
Cheyenne Mountain Complex -- FAS
Cheyenne Mountain, Colorado -- NORAD
NORAD Underground at North Bay, Ontario
Underground Facility at North Bay, Ontario
NORAD Underground Complex at North Bay, Ontario
Photos at NORAD Underground Complex Entrance at North Bay, Ontario
Abandoned Nuclear Missile Silo Tour
20th Century Castles - Unique Underground Properties
U.S. Army Corps of Engineers -- Underground Construction (Tunnels), Shafts and Caissons
U.S. Army Corps of Engineers -- Tunnels and Shafts in Rock
U.S. Navy Tunnels for Coal in Alaska, 1920-21
U.S. Navy's "Rock Site" Plans for Sub-Sea Floor, Mid-Ocean Bases
Artificial Cave Shelters
Hunkering Down for Defense
"Site R" aka "Raven Rock"
Homefront: Site R is secure, but it's not undisclosed
Pine Gap, Australia (NSA, CIA and NRO)
OVEST -- Value Engineering Study Team


FEMA, DOE and Other Federal Agencies

Underground U.S. Government Operating 24/7
Those So-Called Secret Bunkers: Notes From the Underground
Basement Files: Underground D.C.
CIA at Warrenton, Virginia
DOE's Waste Isolation Pilot Plant (WIPP)
A Not-So-Secret Tunnel (under Russian embassy in Washington, DC)
Yucca Mountain Project


Other Government and Civil Engineering Projects

Exploring the Chicago Tunnel Company in the 1980s
Ripple Rock Explosion
Ripple Rock
Traylor Bros. Tunnel Projects Guide
Sam's Light Rail Page - Tunnels & Engineering
The Pyongyang Metro
The New York Underground
Boston's Big Dig
World Subway Page
Center of Berlin Construction
Minnesota Library Access Center
New York City Water Tunnel No. 3
London Underground, U.K.
Exploring the Mount-Royal Tunnel ventilation shaft
New York Subway System
Under-River Tunnel Headings Meet (December, 1916)
Detroit-Windsor Tunnel


Non-North American Military Underground Bases and Tunnels

"Secret Underground Cities" in the U.K.
Ex-military tunnels, Napoleonic fortifications and Underground tunnels of Kent, England
Rudloe Manor -- U.K.
Iraq's Underground City (scroll down a bit)
Fidel's Underground
Belgian Tunnels Geohazard: Last Legacy of War?
Belgian Town in Danger of Collapse as Homes Threatened by WWI Tunnels
FAS Report on Yamantau Mountain, Russia
U.S. Congressional Statement on Yamantau Mountain, Russia
Fort Taiaroa, New Zealand
Corregidor Island, Malinta Tunnel
Syrian Missile Tunnels
Dimona, Israel
North Korea
Secret North Korean Underground Tunnels
Subterranean Beijing
Bunker Tours: Maginot Line, British and German Tunnels and Bunkers
Arthur Rudolph and the V-2 Tunnels at Nordhausen
580 Kilometers of Tunnels Filled with NAZI Gold
5ª Bateria Underground Tour -- Spain
M. Ventoso Tunnel Tour -- Spain


Mormon Church

Mormon Underground Geneological Vaults in Wasatch Mountains


General Interest & Miscellaneous

"Going Underground" -- Entertaining Tour of London's "Tube" (subway system)
Minneapolis Urban Adventurers ACTION SQUAD: Underground Missions
Forgotten City beneath Edinburgh, Scotland
Humans Underground
HAARP -- Detection and Imaging of Underground Structures Using ELF/VLF Radio Waves
Tunnels of the World
Subtropolis: The World's Largest Underground Business Complex


Corporate Underground Facilities

Radar Ranges Of The Mojave
Exploring the Chicago Tunnel Company in the 1980s
AT&T Underground Sites at Finland and Raven Rock Mountain, Pennsylvania


Corporations That Make Underground Tunnels and Facilities

Perini Corporation
Traylor Bros.
Traylor Bros. Tunnels Project Map
Frontier-Kemper Constructors, Inc.
Herrenknecht AG
Parsons Brinckerhoff
Elgood-Mayo Corporation
Dawn Engineering
EKO System
Robbins Company
Amalgamated Construction


Tunneling and Underground Construction Publications, Conferences,
Associations and Institutes

Encyclopaedia of Mining, Tunnelling and Drilling Equipment
American Underground-Construction Association
Tunnels & Tunnelling International
Tunnelling and Trenchless Construction
American Underground-Construction Association -- 2001 Activity Report
American Underground-Construction Association Corporate Member Directory
International Tunneling Association
Tunnel Business Magazine


Tunnel Boring Machines

Recovery of Underground Boring Machines
State-of-the-art tunnel boring machine set to carve out Queens water tunnel
Tunnel boring machines
TBM Exchange.com


Underground Tunneling and Construction Methods

Ground Freezing
Underground Stalk Industrial Method
Tunnel Construction



Cave Database
National Speleological Society
National Caves Association
Saudi Desert Caves
Caves and Caving in the U.K.
Wookey Hole Caves, U.K.
Carlsbad Caverns National Park Page
Luray Caverns, Virginia
Cascade Caverns, Boerne, Texas
Natural Bridge Caverns, Texas
Longhorn Cavern State Park, Texas
Mammoth Cave, Kentucky
Grand Canyon Caverns, Arizona
The Subterranean Gandeur of Grand Canyon Caverns
Kartchner Caverns State Park, Arizona


Ancient Tunnels and Prehistoric Civilizations

The Mystery of Oak Island
King Solomon’s Quarries Under Jerusalem (scroll down a bit)
The Double Gate Tunnels - The Ancient Al-Aqsa Mosque, Jerusalem (Part 1)
Oman: Prehistoric Deep Underground Tunnels
Inca Tunnels
Ancient Roman Aqueduct Tunnels
Underground Rome
Mysterious Tunnels
The Mystery of South America's Subterranean Tunnels
Ancient Tunnels in South America (Part 1)
Ancient Tunnels in South America (Part 2)


The Grab Bag of Unusual Stuff

Friend's of Williamson's Tunnels
The underground world by theme
The Catacombs of Paris
In a secret Paris cavern, the real underground cinema
Paris's new slant on underground movies
The Tunnels of Moose Jaw, Saskatchewan, Canada


Alleged Alien "Secret" Bases

Dulce Base Information Page
A Field Trip to Dulce, New Mexico
NIDS Refutes Dulce Wachtower Claims
Brad Smith on Paul Bennewitz and Dulce
Dulce & Other Underground Bases and Tunnels
Secret Bases
Project Tobacco: Claimed NM underground base


New World Order Conspiracy & News

Washington sets up shadow government
What is going on at the Denver Intl. Airport?


Miscellaneous Underground Conspiracies

Think About It
The Phil Schneider Lecture
The Famous "Billy Goodman Happening"
Project Redbook
The Branton Files
Montauk Project
Montauk Tunnels