Title: Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, rock samples from the North Pole Ridge (OR-005-008), Thirtymile (OR-005-001), and Lower John Day (OR-005-006) wilderness study areas, Sherman and Gilliam counties, Oregon
First published: 1989
Subjects: Geochemical prospecting, Mines and mineral resources
Places: Oregon, Gilliam County, Sherman County