2001. United States. Minerals Management Service. This polygon shapefile shows the official protraction diagram (OPD) and leasing map boundaries for the United States, covering areas of the Outer C... Geological Survey (U.S.).
Search Results
1900. Harvard Map Collection, Harvard College Library and Autolit. de Kelch. This layer is a georeferenced raster image of the historic paper map entitled: Carte de la Sibérie: contenant l'indication des travaux exécutés ... Harvard Map Collection, Harvard Library.
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing mines and quarries located throughout current VMap1 geographic coverage areas. Features in this lay...
1995. National Geospatial-Intelligence Agency. This datalayer is a polygon coverage representing mines (including salt mines or evaporation ponds) and quarries located throughout current VMap1 g...
1943. United States. Board of Economic Warfare. Metals and Minerals Branch. United States. Office of Strategic Services. Research and Analysis Branch. Ma... [Washington, D.C.] : Office of Strategic Services, Branch of Research and Analysis, 1943.
1947. United States. Department of State. Division of Map Intelligence and Cartography. North Decimal Degree 90.000000. South Decimal Degree -90.0000. Ea... [Washington, D.C.] : Dept. of State, Division of Map Intelligence and Cartography, 1947.
1972. North Decimal Degree 85.000000 South Decimal Degree -85.000000 East Decimal Degree 180.000000 West Decimal Degree -180.000000 Summaries of world ir... Ottawa : [s.n.], 1972.
1943. United States. Board of Economic Welfare. Metals and Minerals. United States. Office of Strategic Services. Research and Analysis Branch. Map no. 2... [Washington, D.C.] : Office of Strategic Services, Branch of Research and Analysis, 1943.