Romie Nunn (1903-1988) is a well-known figure in the history of Wyoming, and there's a town named for him. Nunn was a rancher and ran several businesses and also worked for oil companies, and he was an active member of the Caspar Chamber of Commerce and other civic organizations. But among those who knew him, he was also an amazing water witch, or dowser. Skeptics dismiss dowsing as nonsense, but even though no one can explain how it happened, Nunn found water when it was desperately needed.
The more Nunn witched, the more water he found. “It got to a point where he could tell the difference between an underground pool of water and an underground stream,” says Jack. “He would follow the stream aboveground and at a certain point, based on how he felt the copper rod was reacting, he could give you a fairly good estimate of depth and possible output.” “It always amazed me,” says Jack’s sister, Peggy Nunn Nicolls, “that when he would find something he could also figure out the size of the stream and how deep.” “He was actually pretty accurate,” concurs Jack. “Word just spread.”
Collectors Weekly has an extensive article on Romie Nunn and his abilities, plus the history and controversy of dowsing. Link