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.
Search Results
1925. Geological Survey (U.S.). Relief shown by contours and spot heights ; contour interval on land 20 ft. ; contour interval on river surface 5 ft.; Survey dates: 1924.; Topogra... The Survey (Washington).
1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1924."; "Topography by R.W. Burchard."; "Datum is mean sea level."; Sheets include townshi... Dept. of the Interior, U.S. Geological Survey (Washington, D.C).
1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; "5 plan sheets."; Includes "Key map of plan sheets" on each sheet."."; Includes inset "Albany Falls dam... The Survey (Washington).
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.).
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.
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.
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.).
60. State of Idaho
1928. Geological Survey (U.S.). Shows all forest reserves. Compiled in 1916, revised 1926. 159 x 103 centimeters Scale 1:500,000 General Map Collection. USGS (Washington, D.C.?).




