Here are some websites I found about mapping caves, one even has some free software for it as well.
WinKarst Cave Mapping Software
Surveying and Mapping Caves | Suite101
Cave Surveying & Mapping
I like the suggestion of the camera on a pole to check out any areas before you totally commit and enter. One idea would be to use some sort of extendable painters pole. It can collapse down to a smaller size, extend out further than a regular tool handle and is made of lightweight aluminum or fiberglass. May cost ya $20 or so if you don't already have one. I would also consider taking a firearm with you. I know it's wet and damp but a pistol could come in handy if a cornered or territorial animal is in there or comes calling. Shot gun would be best but hard to maneuver in there I'm sure. Maybe a Taurus Judge (.45/.410) or even a .45/.410 2 shot derringer. Just make sure to keep the dog at home! Good luck man! Can't wait to see more pictures!
Not a problem! Glad I can help! Yeah you got me by 2 years but at 56 I'd still stand side by side with you carrying a big stick and a trash can lid to help you fight off that big bad bobcat. Lol!
Great post......I want to see the treasure you find. My son had a friend (both military men) show him a cave in Kentucky that was on his aunt's homesite. Near a stream, and they could see Indian sign.
And, as he told me, there was a ledge up above where he could reach, and something on the ledge. He never went back, as the aunt didn't want anyone on the site. I still wonder what the devil was on that ledge. That is what keeps us in the hills/caves, swinging our machines. We are adventurers. Thanks for a great story. Would love to share one like it, from Korea, but any cave here has snakes.
I don't like snakes. 'nuff said.