Originally Posted by 250senuf
Good choice to not go very far into that mine shaft. You never know what kind of atmosphere is in there. And if it turns out there isn't enough oxygen, well you'll never know....
Caves, Mine Shafts, wells, dark holes, crawlspaces, attics, dank basements...all are on my 'avoid' list. (although I have spent time in all of the above...which worries me)
...and you are right...mine shafts can be deadly for all kinds of reasons...