"Mineral surveys of designated Wilderness Study Areas (WSAs) are conducted by the U.S. Bureau of Mines (USBM) and the U.S. Geological Survey (USGS) at the request of the U.S. Bureau of Land Management (BLM). The USBM researches the mining and mineral exploration history and evaluates mines, prospects, and mineralized areas within or adjacent to WSAs ... The Owyhee River Canyon WSA (ID-16-48B) encompasses approximately 33,700 acres of deep canyons and relatively flat-lying, high plateau in southwest Idaho"--Leaves 4-5.