You searched for: Access Public Remove constraint Access: Public Place United States Remove constraint Place: United States Data type Line Remove constraint Data type: Line Format Shapefile Remove constraint Format: Shapefile Year 1840 Remove constraint Year: 1840
1840. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1840. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.