caverpilot wrote:I realize this post is 8+ years old, but I wanted to point out that the caves in the Bob are extremely well-traveled and documented by cavers of the Northern Rocky Mountain Grotto as well as members of the Caves of Montana Project, both associated with the National Speleological Society. The reason information is scarce online is purposeful - significant caves need protection and this is covered by both the Montana Cave Conservation Act as well as the Federal Cave Resources Protection Act. Publication of significant cave locations is illegal. The USGS has taken cave locations off all of the topos in the US as well. That said, anyone interested in exploring these caves should contact the Northern Rocky Mountain Grotto (Montana's caving club) at nrmg.org
Caverpilot, a few years ago I joined the NRMG and am now actively involved in discovering, surveying, and exploring caves in Montana. The Silvertip area project has been astounding though I have not been out there yet. The grotto just spent two weeks out there this summer in the deepest cave in the country. I also recently discovered a new cave with an underground lake inside....but it's not in the Bob.
For those who want to explore caves you should join your local grotto and get involved. Otherwise you won't 1. find the caves and 2. understand how to best protect them.
Cheers!