Mineral Resources of the Owyhee Canyon and South Fork Owyhee River Wildeerness Study Areas, Elko County, Nevada, and Owyhee County, Idaho; U.S. Geological Survey Bulletin 1719-F
Washington: United States Government Printing Office, 1987. softcover, 11" x 8.5", folded plate 1 inside rear pocket, 15 pages, illustrated. near fine. Item #5569982
from the summary, "Three U.S. Bureau of Land Management (BLM) wilderness study areas comprise approximately 61,135 acres of Tertiary volcanic rocks exposed along the South Fork of the Owyhee River in northeastern Nevada and Southwestern Idaho."
Price: $20.00