2005. National Atlas of the United States. This polygon shapefile portrays the time zones of the United States, Puerto Rico, and the U.S. Virgin Islands. Also included are the Greenwich Mean... National Atlas of the United States.
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2005. National Atlas of the United States. The Topographic and Bathymetric Shaded Relief of North America map layer shows depth and elevation ranges using colors, with relief enhanced by sha... National Atlas of the United States.
1912. Geological Survey (U.S.). Relief shown by contours and spot heights.; "R. B. Marshall, Chief Geographer"; "Topography by C.H. Birdseye, Geo. R. Davis ... H.L. McDonald, T.H.... The Survey (Washington, D.C).
1924. Geological Survey (U.S.). Relief shown by contours and spot heights.; Depths shown by form lines.; Includes location map: The Hawaiian Islands.; "A.O. Burkland, Topographic ... The Survey (Washington, D.C).
1917. Geological Survey (U.S.). Relief shown by contours and spot heights.; Inset: Principal islands of Hawaii. 86 x 113 centimeters Scale 1:62,500 General Map Collection. The 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.