If there's something we've learned on KZbin, it's don't go caving, and don't go diving! Mining seems like a happier median! Really interesting, thanks for taking us along!
@jcee22592 ай бұрын
Vacated mines are former industry sites. Leaving evidence of that activity. Extracted soil and stone, typically. People start this hobby by learning where mining may occur. I may find man-made excavations searching for Karst. What I expect to enter and explore is not man-made. One such entry found Saber-tooth Tigers. SCUBA let me find unknown life within tropic reef caves. Have done Grade-6 cave cartography for the US Park Service.