USGS MR 90
Title:Map showing occurrences of copper minerals in Alaska
Publisher:U.S. Geological Survey
Ordering Info:USGS Publications Warehouse
Cobb, E.H., 1984, Map showing occurrences of copper minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 90, 19 p., 1 sheet, scale 1:2,500,000.