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1845. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1845. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.
1850. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1850. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.
1855. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1855. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.
1861. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1861. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.
1870. Thomas, William G., 1964-. This line shapefile represents the railroad system of the United States in 1870. This layer is part of the Railroads and the Making of Modern Ameri... University of Nebraska--Lincoln.
2005. Geological Survey (U.S.). This line shapefile represents railroads in the conterminous United States and Alaska at 1:2,000,000. This is a replacement for the December 1998 m... Geological Survey (U.S.).
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of the United States railway system at 1:24,000 to 1:100,000 scale. This polyline shapefile covers all... United States. Bureau of Transportation Statistics.
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of the nation's railway system at 1:24,000 to 1:100,000 scale. This point shapefile covers all 50 Stat... United States. Bureau of Transportation Statistics.
2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents the locations of refractory, abrasive, and other industrial minerals operations in the United States. The data repr... National Atlas of the United States.
2015. United States. Department of Housing and Urban Development. Revitalization areas are United States Department of Housing and Urban Development (HUD) designated neighborhoods in need of economic and community... United States. Department of Housing and Urban Development.