1847. Mitchell, S. Augustus (Samuel Augustus), 1792-1868. Longitude in degrees west from Greenwich and east from Washington, D.C.; latitude in degrees north from equator.; Colored by county; borders of sta... S.A . Mitchell (Philadelphia, Pa).
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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], ).
1980. United States. Soil Conservation Service. Shows land use.; "Interpretations derived from soil map constructed 1979 by Cartographic Division, Soil Conservation Service, USDA, of the State of... The Service (Washington, D.C.?).
1979. United States. Soil Conservation Service. Shows land use.; "June 1979." 66 x 51 centimeters. The Service (Washington, D.C.?).
1860. Walling, Henry Francis, 1825-1888. Relief shown by hachures.; Includes parts of adjacent counties.; "Copyright secured." 45 x 55 Centimeters, on sheet 52 x 59 Centimeters Scale not g... H. F. Walling (Cambridge, Mass).
2014. Murphy, Brendan, Levinson, David M, and Owen, Andrew. This data was created as part of a study that examined the accessibility to jobs by walking in the 53 largest (by population) metropolitan areas in...
2015. Murphy, Brendan and Owen, Andrew. This data was created as part of a study that examined the accessibility to jobs by transit in 46 of the 50 largest (by population) metropolitan ar...
2018. Murphy, Brendan and Owen, Andrew. This data was created as part of a study that examined the accessibility to jobs by transit in 46 of the 50 largest (by population) metropolitan ar...
2017. Murphy, Brendan and Owen, Andrew. This data was created as part of a study that examined the accessibility to jobs by transit in 46 of the 50 largest (by population) metropolitan ar...
2016. Murphy, Brendan and Owen, Andrew. This data was created as part of a study that examined the accessibility to jobs by transit in 46 of the 50 largest (by population) metropolitan ar...