Search Results
1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, and 1999. Geological Survey (U.S.). This line shapefile portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the i... Geological Survey (U.S.).
1975. United States. Bureau of Transportation Statistics. This point shapefile contains information about vehicle accident characteristics and environmental conditions at the time of the crash, between 197... United States. Bureau of Transportation Statistics.
2014. National Energy Information Center (U.S.). This line shapefile represents the major natural gas transmission pipelines in the U.S. including interstate, intrastate, and gathering pipelines a... National Energy Information Center (U.S.).
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This line shapefile shows bathymetric contours with depth in metres for ocean areas covered by the extent of the North American Atlas project. Isob... Canada Centre for Mapping, Instituto Nacional de Estadística, Geografía e Informática (Mexico), and Geological Survey (U.S.).
2004. California. Department of Fish and Game. Marine Resources Region. This line shapefile represents the offshore boundary between the United States and Mexico. This layer is part of a collection of data created by th... California. Department of Fish and Game. Marine Resources Region.
2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. A caldera is a large, generally circular depre... Geological Survey (U.S.) and National Atlas of the United States.
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of United States railway system at 1:24,000 to 1:100,000 scale. This polyline shapefile depicts Amtrak... United States. Bureau of Transportation Statistics.
2014. National Energy Information Center (U.S.). This line shapefile represents major petroleum product pipelines in the United States as of November 2014. This layer includes interstate trunk lin... National Energy Information Center (U.S.).
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This line shapefile depicts the political boundaries of North America, including: international boundaries, provincial boundaries, state or territo... Geological Survey (U.S.).
2005. Geological Survey (U.S.). This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of signific... National Atlas of the United States.