Sorry, your browser does not support iframes.
Skip to this page's content
National Geographic Society
P.O. Box 98199
Washington
,
DC
20090-8199
USA
38.90531943278526
,
-77.0376992225647
800-647-5463
CELEBRATING 125 YEARS »
Search National Geographic
Search
nationalgeographic.com
Search NationalGeographic.com
Search Video
Submit
Connect:
Home
Daily News
The Magazine
Maps
Science
Education
Games
Events
Blogs
Movies
Explorers
Apps
Trips
Video
Video Home
Nat Geo TV
Nat Geo Wild
Animals
Kids
News
More
Photography
Photography Home
Photo of the Day
Galleries
Wallpapers
Photo Tips
Photographers
Your Shot
Buy Prints
Video
Newsletters
Animals
Animals Home
Facts
Photos
Video
Animal Conservation
Environment
Environment Home
Energy
Freshwater
Global Warming
Habitats
Natural Disasters
The Ocean
The Green Guide
Newsletters
Travel
Travel Home
Top 10
Destinations A-Z
Trip Ideas
Travel Blogs
Traveler Magazine
Photos
Video
Our Trips
Newsletters
Adventure
Adventure Home
Gear
Ultimate Adventurers
Trip Ideas
Parks
Photos
Video
Blog
Nat Geo Trips
AllTrails
Newsletters
Television
National Geographic Channel
Nat Geo Wild
TV Schedule
Shows
Video
Blogs
Kids
Kids Home
Games
Videos
Animals & Pets
Photos
Countries
Fun Stuff
Community
News
Animal Jam
Little Kids
Subscribe
National Geographic Magazine
National Geographic Kids
National Geographic Little Kids
National Geographic Traveler
Shop
Store Home
Genographic Kits
Best Sellers
New
Kids Shop
Gift Finder
Channel Shop
Sale
Shop by Catalog
Email Signup
Current Issue
June 2013
Table of Contents »
HOME
FIELD TEST
FEATURES
PHOTOGRAPHY
YOUR SHOT
MY SHOT
VIDEO
PHENOMENA BLOGS
PUZZLES
ARCHIVES
SUBSCRIBE
Feature Article
|
Photo Gallery
|
Photo Map: Explore Caves
|
Video: Into the Darkness
- ADVERTISEMENT -
Sorry, your browser does not support iframes.
Deep South
Hard-core cavers in three southern states stop at nothing to probe an underworld wilderness.
/2009/06/tag-caves/img/01-rumbling-falls-714.jpg
/2009/06/tag-caves/img/caves-60-01.jpg
Photograph by Stephen Alvarez
Rumbling Falls Cave
Tennessee
Far from the light of day, cavers illuminate the four-acre, 350-foot-high Rumble Room. Reaching the limestone cavern entails dropping down a 68-foot shaft, climbing up two 14-foot waterfalls, and stooping or crawling along 2,000 feet of passageways, some barely a foot wide. (This is a panoramic composite of four images.)]]>
http://pictopia.com/perl/ptp/natgeo?photo_name=1217538
/2009/06/tag-caves/img/02-sub-soloman-475.jpg
/2009/06/tag-caves/img/caves-60-02.jpg
Photograph by Stephen Alvarez
Sub-Solomon Cave
Tennessee
Dissolving layers of ancient limestone, moving water sculpts underground terrain. Cavers ready for a long shower enter 405-foot-deep Sub-Solomon at its base and climb up against the flow of four waterfalls, including this 65-footer.]]>
/2009/06/tag-caves/img/03-iron-hoop-714.jpg
/2009/06/tag-caves/img/caves-60-03.jpg
Photograph by Stephen Alvarez
Iron Hoop Cave
Alabama
Millennia in the making, fantastical chambers like this are decorated by the infinitely slow accumulation of minerals (chiefly calcite) deposited by water dripping through rock. Encounters with such rare and fragile beauty are highly prized.]]>
http://pictopia.com/perl/ptp/natgeo?photo_name=1217540
/2009/06/tag-caves/img/04-marion-smith-714.jpg
/2009/06/tag-caves/img/caves-60-04.jpg
Photograph by Stephen Alvarez
http://pictopia.com/perl/ptp/natgeo?photo_name=1217542
/2009/06/tag-caves/img/06-tennessee-river-714.jpg
/2009/06/tag-caves/img/caves-60-06.jpg
Photograph by Stephen Alvarez
http://pictopia.com/perl/ptp/natgeo?photo_name=1217543
/2009/06/tag-caves/img/07-hollow-cave-714.jpg
/2009/06/tag-caves/img/caves-60-07.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/08-green-well-475.jpg
/2009/06/tag-caves/img/caves-60-08.jpg
Photograph by Stephen Alvarez
http://pictopia.com/perl/ptp/natgeo?photo_name=1217550
/2009/06/tag-caves/img/09-thunder-hole-714.jpg
/2009/06/tag-caves/img/caves-60-09.jpg
Photograph by Stephen Alvarez
Thunder Hole Cave
Alabama
Prime qualification for cavers: tolerance for a tight squeeze. John Benson can make progress only with his helmet off and his head turned just so. He exhales, making his body as flat as possible, slides a few inches on his back, stops, inhales, and repeats.]]>
/2009/06/tag-caves/img/10-indianapolis-714.jpg
/2009/06/tag-caves/img/caves-60-10.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/11-ellison-cave-475.jpg
/2009/06/tag-caves/img/caves-60-11.jpg
Photograph by Stephen Alvarez
Ellison's Cave
Georgia
The 586-foot-deep pit dubbed Fantastic ranks as the longest single cave drop in the lower 48 states.]]>
http://pictopia.com/perl/ptp/natgeo?photo_name=1217541
/2009/06/tag-caves/img/12-bonfire-714.jpg
/2009/06/tag-caves/img/caves-60-12.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/13-tag-party-714.jpg
/2009/06/tag-caves/img/caves-60-13.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/14-cave-explore-714.jpg
/2009/06/tag-caves/img/caves-60-14.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/15-fern-cave-714.jpg
/2009/06/tag-caves/img/caves-60-15.jpg
Photograph by Stephen Alvarez
/2009/06/tag-caves/img/16-mcbride-cave-714.jpg
/2009/06/tag-caves/img/caves-60-16.jpg
Photograph by Stephen Alvarez
http://pictopia.com/perl/ptp/natgeo?photo_name=1217553
/2009/06/tag-caves/img/17-tag-master-714.jpg
/2009/06/tag-caves/img/caves-60-17.jpg
Photograph by Stephen Alvarez