1914. Geological Survey (U.S.). Relief shown by spot heights and contours. Contour interval 100 feet.; George Otis Smith, Director USGS. R.B. Marshall, Chief Geographer; Sledge Ta... The Survey.
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1897. Geological Survey (U.S.). Shows buildings, roads and railroads.; Relief shown by contours and spot heights.; "Surveyed in 1895."; Includes legend. 43 x 62 centimeters Scale ... U.S. Geological Survey (Washington, D.C).
2011. United States. Bureau of Transportation Statistics. This data set includes cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities were collected from the 1970 National Atl... U.S. Geological Survey.
2004. National Atlas of the United States. This point shapefile includes Holocene volcanoes, which are those thought to be active in the last 10,000 years, that are within an extended area o... National Atlas of the United States.