 ELKO, Nev., May 26, 2021 PRNewswire -- U.S. Gold Corp. Nasdaq: USAU the Company, a gold exploration and development company, is pleased to provide an update on its Challis Gold Project as it moves towards a Plan of Operations PoO for the next phase of exploration. The Challis Gold Project is just 75 kilometers southwest of Salmon, Idaho, in the Challis volcanics. 