According to this article, there is still virgin ground in Wyoming!
“Because there was absolutely no easy access to Wyoming gold areas, only a few very hardy prospectors ever even put pick and shovel to the ground,” says the Wyoming Prospectors Association. “The few mining operations that operated did extremely well finding huge amounts of gold.”Mark Davis Powell Tribune Via Wyoming News Exchange
The article is a good read about prospecting in Wyoming. A little history, some story, and but of local info. If what they are saying is true, it looks like I might need to reconsider my summer plans for 2020.