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1. BEA Economic Areas, 1977
1977. Digital Social Science Center (DSSC), Columbia University Libraries and United States. Bureau of Economic Analysis. This is a scanned version of the 1977 paper map entitled: BEA Economic Areas. Both sides of the map were scanned at 300 dots per inch and are in t... United States. Bureau of Economic Analysis.
2. Canada Cities, 2008
2007. Tele Atlas (Firm : U.S.) and Economic and Social Research Institute. Canada Cities is a point theme representing cities of Canada including national, state, and provincial capitals. ESRI.
3. National Highways Map of the United States Showing Principal Transcontinental Highways and Connecting System of one Hundred Thousand Miles of National Highways Proposed by the National Highways Association, 1915
1915. Digital Social Science Center (DSSC), Columbia University Libraries, Mulford, John C., Rosendorn, P. A., Jenkins, E. E., and National Highways Association. This is a scanned version of the 1915 paper map entitled: National Highways Map of the United States Showing Principal Transcontinental Highways an... National Highways Association.
4. National Populated Places 2000
2008. U.S. Geological Survey. National Populated Places 2000 is a point theme representing cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities we... U.S. Geological Survey.
5. North America Electric Transmission Lines, 2009
2009. Platts (Firm). Electric Transmission Lines is a polyline theme representing electric power lines of transmission and sub-transmission voltages covering North Amer... Platts.
6. The United States of America in 6 Sheets, 1874
1874. Digital Social Science Center (DSSC), Columbia University Libraries and Petermann, A. (August), 1822-1878. This is a scanned version of the 1874 paper map set entitled: The United States of America in 6 Sheets. The map was scanned at 300 dots per inch a... Justus Perthes.
7. Unied States Railroad Crossings, 2013
2013. United States. Bureau of Transportation Statistics. FRA Grade Crossings is a spatial file that originates from the National Highway-Rail Crossing, Inventory Program. The program is to provide informa...
8. United States Railroads, 2008
2008. International Steering Committee for Global Mapping (ISCGM). United States Railroads is a line theme representing railroads in United States . This layer is a component of the Global Map, a 1:1,000,000 sc...
9. United States 109th Congressional Districts, 2008
2008. ESRI. United States 109th Congressional Districts represents the political boundaries for the U.S. 109th Congressional Districts. The membership is curre... ESRI.
10. United States 110th Congressional Districts, 2008
2008. ESRI. United States 110th Congressional Districts represents the political boundaries for the U.S. 110th Congressional Districts. The membership is curre... ESRI.