USGS Mineral Investigations Resources Map Publications

Maps showing geographic distributions and grade of mineral resources on a regional basis.

MR 93 Report Map
Cruz, E.L., and Cobb, E.H., 1986, Map showing occurrences of antimony minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 93, 3 p., 1 sheet, scale 1:2,500,000.
MR 91 Map
Cobb, E.H., 1984, Map showing occurrences of lead minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 91, 1 sheet, scale 1:2,500,000.
MR 90 Report Map
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.
MR 89 Map
Cruz, E.L., and Cobb, E.H., 1984, Map showing occurrences of tin minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 89, 1 sheet, scale 1:2,500,000.
MR 87 Map
Cruz, E.L., and Cobb, E.H., 1984, Map showing occurrences of mercury minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 87, 1 sheet, scale 1:2,500,000.
MR 86 Map
Cobb, E.H., 1984, Map showing occurrences of molybdenum minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 86, 1 sheet, scale 1:2,500,000.
MR 85 Report Map
Cobb, E.H., 1984, Map showing occurrences of tungsten minerals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 85, 6 p., 1 sheet, scale 1:2,500,000.
MR 84 Report Map
Cobb, E.H., 1984, Map showing occurrences of lode gold and silver in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 84, 16 p., 1 sheet, scale 1:2,500,000.
MR 83 Map
Cobb, E.H., 1984, Map showing occurrences of placer gold in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 83, 1 sheet, scale 1:2,500,000.
MR 68 Map
Cobb, E.H., 1975, Chromite occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 68, 1 sheet, scale 1:2,500,000.
MR 66 Map
Cobb, E.H., 1975, Tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 66, 1 sheet, scale 1:2,500,000.
MR 65 Map
Cobb, E.H., 1974, Tin occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 65, 1 sheet, scale 1:2,500,000.
MR 64 Map
Cobb, E.H., 1975, Occurrences of platinum-group metals in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 64, 1 sheet, scale 1:2,500,000.
MR 63 Report Map
Cobb, E.H., 1974, Nickel occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 63, 2 p., 1 sheet, scale 1:2,500,000.
MR 62 Map
Cobb, E.H., 1974, Copper occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 62, 1 sheet, scale 1:2,500,000.
MR 61 Report Map
Cobb, E.H., 1974, Cobalt occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 61, 2 p., 1 sheet, scale 1:2,500,000.
MR 59 Report Map
Cobb, E.H., 1974, Molybdenum occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 59, 3 p., 1 sheet, scale 1:2,500,000.
MR 56 Map
Cobb, E.H., 1970, Uranium, thorium, and rare-earth elements in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 56, 1 sheet, scale 1:2,500,000.
MR 54 Report Map
Cobb, E.H., 1970, Mercury occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 54, 2 p., 1 sheet, scale 1:2,500,000.
MR 53 Map
Cobb, E.H., 1970, Bismuth occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 53, 1 sheet, scale 1:2,500,000.
MR 41 Map
Cobb, E.H., 1964, Industrial minerals and construction materials occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 41, 1 sheet, scale 1:2,500,000.
MR 40 Map
Cobb, E.H., 1964, Iron occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 40, 1 sheet, scale 1:2,500,000.
MR 38 Report Map
Cobb, E.H., 1964, Placer gold occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 38, 16 p., 1 sheet, scale 1:2,500,000.
MR 11 Map
Cobb, E.H., 1960, Antimony, bismuth, and mercury occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 11, 1 sheet, scale 1:2,500,000.
MR 10 Map
Cobb, E.H., 1960, Molybdenum, tin, and tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 10, 1 sheet, scale 1:2,500,000.
MR 9 Map
Cobb, E.H., 1960, Copper, lead, and zinc occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 9, 1 sheet, scale 1:2,500,000.
MR 8 Map
Cobb, E.H., 1960, Chromite, cobalt, nickel, and platinum occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resources Map 8, 1 sheet, scale 1:2,500,000.