From the YouTube page Digging Wyoming we meet an explorer who is determined to find gold in them their hills.

The audio at the very beginning of this video is poor because of the Wyoming wind. But once he gets into the old gold mine in South Pass thing get interesting.

The old mine is so tight in places our video host is, at times, in the dirt squeezing through tiny openings. Other times he is walking upright.

No matter if he actually finds gold or not. Old hand dug mines like this are all around Wyoming and can be fun to explore, providing they are safe. There is the key. Don't go in if it looks the least bit sketchy.