2000. Geological Survey (U.S.). This polygon shapefile portrays the 2000 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
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2002. Lannoo, Michael J., Blackburn, Laura, and Nanjappa, Priya. This polygon shapefile portrays the distribution of 10 selected amphibians in the United States, based on historical literature and museum records ... National Atlas of the United States.
1869. Rosenfold, E. H. 1869 at foot of reproduction.; Relief shown with hachures.; Index to buildings.; Originally published on 2 leaves in bound volume, pages 10-11. on ... publisher not identified (Wyoming?).
2006. National Atlas of the United States. This polygon shapefile contains federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. Only areas of... National Atlas of the United States.
2002. United States. Forest Service and Geological Survey (U.S.). This raster layer portrays general forest cover types for the United States in GeoTIFF format. Data were derived from Advanced Very High Resolution... National Atlas of the United States.
1905. Fisher, Cassius A. (Cassius Asa), 1872-1930. Relief shown by contours.; "Professional paper no. 53 Pl. III"--upper right. 62 x 67 centimeters Scale approximately 1:254,000 General Map Collection. U.S. Geological Survey (Washington D.C).
1925. Geological Survey (U.S.). Color chart of rock formations, with explanatory notes, in margin.; Inset: Key map of state. 89 x 117 Centimeters, sheets 102 x 75 and 102 x 77 Cen... U.S. Geological Survey (Washington).
2014. National Atlas of the United States. This polygon shapefile includes Global Map data showing the counties and equivalent entities of the United States, Puerto Rico, and the U.S. Virgin... National Atlas of the United States.
2014. National Atlas of the United States. This line shapefile includes Global Map data showing the counties and equivalent entities of the United States, Puerto Rico, and the U.S. Virgin Is... National Atlas of the United States.
2014. National Atlas of the United States. This point shapefile includes Global Map data showing cities and towns in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are... National Atlas of the United States.