Thomas Rhoades, and his son Caleb after him, rode alone into the Uintas in the 1850s and came back with gold, said to come from sacred Ute workings they were sworn never to reveal, hauled under agreement for the early church. When the arrangement died, the location died with it. The Uinta high country has been combed for it for a century and a half, and the story remains the strongest lost-mine tradition in Utah.
High Uintas east of Kamas (Duchesne/Summit counties, UT)
See it on the map