All Maps
Explore all USGS Maps and refine your search by type, topic, year, location, and advanced search.
Filter Total Items: 9586
Maps showing metallic mineral resources of the Bendeleben and Solomon quadrangles, western Alaska Maps showing metallic mineral resources of the Bendeleben and Solomon quadrangles, western Alaska
This report summarizes the potential for metallic mineral resources in the Bendeleben and Solomon quadrangles, central Seward Peninsul, Alaska (fig. 1), and was prepared as part of the AMRAP (Alaska Mineral Resources Appraisal Program) studies for these quadrangles, which were begun in 1981. Geologic mapping during this study (TILL and others, 1986) included the southern part of the...
Maps showing mineral resource assessment for porphyry and stockwork deposits of copper, molybdenum, and tungsten and for stockwork and disseminated deposits of gold and silver in the Butte 1° x 2° quadrangle, Montana Maps showing mineral resource assessment for porphyry and stockwork deposits of copper, molybdenum, and tungsten and for stockwork and disseminated deposits of gold and silver in the Butte 1° x 2° quadrangle, Montana
This report documents the assessment for potential occurrences of undiscovered porphyry and stockwork deposits of copper, molybdenum, and tungsten (porphyry Cu-Mo-W) and stockwork and disseminated deposits of gold and silver (disseminated Au-Ag) in the Butte 1 °X2° quadrangle. The Butte quadrangle, in west-central Montana, is one of the best known mineral producing regions in the U.S...
Mineral resource assessment of mafic and ultramafic rocks in the Greenville 1° x 2° quadrangle, South Carolina, Georgia, and North Carolina Mineral resource assessment of mafic and ultramafic rocks in the Greenville 1° x 2° quadrangle, South Carolina, Georgia, and North Carolina
Mineral resources of the Greenville 1° x 2° quadrangle, South Carolina, Georgia, and North Carolina, were assessed between 1984 and 1990 under the Conterminuous United States Mineral Assessment Program (CUSMAP) of the U.S. Geological Survey (USGS). The mineral resource assessments were made on the basis of geologic, geochemical, and geophysical investigations and on the distribution of...