1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.
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2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This polygon shapefile contains bathymetric data with depth in metres for ocean areas covered by the extent of the North American Atlas project. Is... Canada Centre for Mapping.
2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.
1915. Renshawe, J. H. (John Henry), 1852-. Relief shown by spot elevations and pictorially. 53 x 46 centimeters Scale 1:187,500 General Map Collection. United States Geological Survey (Washington, D.C).
1877. Geological and Geographical Survey of the Territories (U.S.) and Hayden, F. V. (Ferdinand Vandeveer), 1829-1887. Shows drainage, road, etc. Relief by shown by contours (interval 200') and spot heights. From: its Report, 12th, 1878, v. 12:2, atlas. 1 map; 56 x ...
1891. North oriented to the right.; Blueprint. 50 x 67 centimeters Scale approximately 1:2,400 General Map Collection. publisher not identified.
1854. Kelton, J. C. (John Cunningham), 1828-1893. Photocopy.; "1854"--added on reproduction.; Relief shown by hachures.; North oriented to the upper right. 42 x 54 centimeters Scale approximately 1... (Wyoming?).
2010. Geological Survey (U.S.). This polygon shapefile portrays the Public Land Surveys of the United States, including areas of private survey, donation land claims, and land gra... Geological Survey (U.S.).
1923. Rand McNally and Company. Date from previously assigned call number.; Relief shown by hachures.; Includes index to principal cities and to railroads. on sheet 54 x 72 centim... Rand McNally (Chicago).
2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.