Mineral resources of the Pueblo Mountains Study Area, Harney County, Oregon and Humboldt County, Nevada

"In 1984, at the request of the U.S. Bureau of Land Management, the U.S. Bureau of Mines studied 41,315 acres of the 72,690-acre Pueblo Mountains WSA (Wilderness Study Area), in order to evaluate its mineral resources ... The Pueblo Mountains WSA encompasses approximately 72,090 acres in the south-central portion of Harney County, Oregon, and 600 acres in Humboldt County, Nevada ... The study was a cooperative study with the USGS (U.S. Geological Survey). The Bureau examined and evaluated mineral resources at known mines, prospects, and mineralized areas"--Leaf 4.