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.
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2005. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.
1914. United States. Forest Service. Southwestern Region. Relief shown by hachures and spot heights.; Shows fire prevention coverage areas. 31 x 55 centimeters Scale approximately 1:250,000 General Map Col... U.S. Forest Service (Albuquerque).
2006. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.
2005. Geological Survey (U.S.). This polygon shapefile portrays the state boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map l... Geological Survey (U.S.).
1892. United States. General Land Office. Relief shown by contours and spot heights. 83 x 69 centimeters Scale [1:823,680] General Map Collection. General Land Office (Washington, D.C).
1876. United States. General Land Office. Relief shown by hachures.; "S.S. Burdett, Commissioner." 59 x 73 centimeters Scale 1:1,140,480; 18 miles to 1 inch General Map Collection. General Land Office (Washington, D.C).
1909. United States. General Land Office. Relief shown by hachures.; Prime meridians: Greenwich and Washington.; Insets: Tucson, Phoenix, Connections to railroads in Arizona. 92 x 76 centim... Andrew B. Graham (Washington, D.C).
1879. United States. General Land Office. Relief shown by hachures.; "J.A. Williamson, Commissioner." 58 x 73 centimeters Scale approximately 1:140,480 General Map Collection. General Land Office (Washington).
1928. United States. Bureau of Public Roads. Shows various types of federal roads, national forests, parks, monuments, and military reservations. Pavement types shown by letters.; "Data correc... Dept. of Agriculture, Bureau of Public Roads (Washington, D.C).