Originally Posted by
Omicron
If you'd like to come up to Wisconsin, we have an active team of divers researching, exploring and diving old mines in the old mining districts of Wisconsin. We have one mine that is multi level - the upper sections have been explored to about 1300 feet and several in the team have pushed a deeper tunnel to close to 4000 (I think, would have to check their last survey notes). We've installed a habitat in this mine to help ease decompression in the colder water.
We finished exploring one of the other mines last year to about 1500 feet - this one was hand dug and has lots of artifacts in it. This mine was featured in ADM awhile back. This would be the more pleasing cave to video as the viz is similar to NFL caves.
These are not public in any way. Before anything could happen I would have to speak with the rest of the group as our access to these mines is very touchy.