GIS Data
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Bathymetric map of the south part of Great Salt Lake, Utah, 2005 Bathymetric map of the south part of Great Salt Lake, Utah, 2005
The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Wildlife Resources, collected bathymetric data for the south part of Great Salt Lake during 2002–04 using a single beam, high-definition fathometer and real-time differential global positioning system. Approximately 7.6 million depth readings were collected along more than 1,050 miles of...
Geologic map of the northern plains of Mars Geologic map of the northern plains of Mars
The northern plains of Mars cover nearly a third of the planet and constitute the planet's broadest region of lowlands. Apparently formed early in Mars' history, the northern lowlands served as a repository both for sediments shed from the adjacent ancient highlands and for volcanic flows and deposits from sources within and near the lowlands. Geomorphic evidence for extensive tectonic
Coastal-change and glaciological map of the Ronne Ice Shelf area, Antarctica, 1974-2002 Coastal-change and glaciological map of the Ronne Ice Shelf area, Antarctica, 1974-2002
Changes in the area and volume of polar ice sheets are intricately linked to changes in global climate, and the resulting changes in sea level may severely impact the densely populated coastal regions on Earth. Melting of the West Antarctic part alone of the Antarctic ice sheet could cause a sea-level rise of approximately 6 meters (m). The potential sea-level rise after melting of the...
Geologic map of the Stafford quadrangle, Stafford County, Virginia Geologic map of the Stafford quadrangle, Stafford County, Virginia
Introduction The Stafford 7.5-minute quadrangle, comprising approximately 55 square miles (142.5 square kilometers) of northeastern Virginia, is about 40 miles (mi) south of Washington, D.C. The region's main north-south transportation corridor, which connects Washington, D.C., and Richmond, Va., consists of Interstate 95, U.S. Highway 1, and the heavily used CSX and Amtrak railroads...