Closed and Limited Access Caves of TAG - http://www.dcg-nss.org/ccl.html
Provides a list of closed and limited access caves in Tennessee, Alabama, and Georgia, USA. |
IronMiners.com - http://www.ironminers.com/ironmines/
A historical and visual documentation of the various mines in the highlands of New Jersey, New York, and Pennsylvania. Forum, mine description, mining terms and contacts. |
U.S. Cavers Forum - http://nssmembersforum.proboards28.com/
Cave related discussions and information. |