Search Results
2007, 2008, 2009, and 2010. Dartnell, Peter, Kvitek, Rikk G., Seafloor Mapping Lab, Pacific Coastal and Marine Science Center, and Golden, Nadine E. This line shapefile contains bathymetric contours at 10 meter intervals for the offshore area of Salt Point, California. These data were generated ... Geological Survey (U.S.).
2004, 2005, 2006, 2007, and 2008. Kvitek, Rikk G., Dartnell, Peter, Bretz, Carrie K., Seafloor Mapping Lab, Pacific Coastal and Marine Science Center, and Golden, Nadine E. This line shapefile contains bathymetric contours at 10 meter intervals for the offshore area of San Francisco, California. This layer was generate... Geological Survey (U.S.).
2006, 2007, 2008, 2009, and 2010. Golden, Nadine E. and Pacific Coastal and Marine Science Center. This line shapefile contains bathymetric contours at 10 and 50 meter intervals for the offshore area of Ventura, California. This layer was generat... Geological Survey (U.S.).
1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, and 1990. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
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.).
2008. World Wildlife Fund. This river network (stream lines) map for Europe is derived from the flow direction map for Europe. The flow accumulation map for Europe is used fo... Geological Survey (U.S.).
2008. World Wildlife Fund. This river network (stream lines) map for Europe is derived from the flow direction map for Europe. The flow accumulation map for Europe is used fo... Geological Survey (U.S.).
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This line shapefile represents major fault lines in Alaska. This map complements the Generalized Geologic Map of the Conterminous United States by ... Geological Survey (U.S.) and National Atlas of the United States.
1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, and 1994. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile represents the major fault lines in the United States. A fault is a fracture or fracture zone in the Earth's crust along which ... Geological Survey (U.S.).