1999. Geological Survey (U.S.). This line shapefile portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the i... Geological Survey (U.S.).
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1839. Burr, David H., 1803-1875. Detailed map showing relief by hachures, drainage, township and county boundaries, cities and towns, canals, road, and railroads. From his The Amer... (London], ).
2004. National Atlas of the United States. This polygon shapefile portrays county level data for the fiscal-year-2004 National Fire Plan - Hazardous Fuels Reduction Program. The purpose of t... National Atlas of the United States.
1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This polygon shapefile contains bathymetric data with depth in metres for ocean areas covered by the extent of the North American Atlas project. Is... Canada Centre for Mapping.
1924. Vermont. Department of Highways. Relief shown by hachures and spot heights.; "Manufactured by the National Survey, Chester, Vt."; "Copyright 1924 bt Aaron H. Grout, Secretary of St... Vermont Secretary of State (Montpelier, Vt).
1924. Vermont. Department of Highways. Relief shown by shading, hachures and spot heights.; Shows steam railroads and electric railroads.; "Manufactured by the National Survey, Chester, ... Secretary of State for the State of Vermont (Montpelier, Vt), 1924.
2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.
1979. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map compiled in 1977 from USGS 1:24,000 topographic maps dated 1970-1973; interpretations derived from soil... Dept. of Agriculture, Soil Conservation Service (Washington.).
2010. Geological Survey (U.S.). This polygon shapefile portrays the Public Land Surveys of the United States, including areas of private survey, donation land claims, and land gra... Geological Survey (U.S.).