Search datasets
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, boundaries, and other selected...
Search relevance: 1.00 | Views last month: 36 | Catalog Last Checked: May 05, 2026 at 09:21 PM -
USGS Historical Quadrangle in GeoPDF. The USGS Historical Topographic Map Collection (HTMC) is scanning all scales and all editions of topographic maps published by the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:00 PM -
This dataset contains locations and attributes of 2-ft interval topography data in 2008. Created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: May 05, 2026 at 10:39 PM -
This data set contains the depth-to-water contours derived from ground-water monitoring sites in Carson Valley, west-central Nevada. The data set is part of a spatial ground-water data base...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: June 09, 2026 at 11:30 PM -
This data set consists of water-table contours for Nevada. These data were created as part of an effort to provide statewide information on water table and depth to ground water for...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: June 09, 2026 at 11:05 PM -
The substrate enhancement pilot project (SEPP) extent GIS layer represents an area where an artificial substrate will be placed. The artificial substrate, consisting of a mixed size class of...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 09:21 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 07:34 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 08:05 PM -
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 09:12 PM -
0.6 meter contours. This dataset contains locations and attributes of 0.6 meter interval topography data, created using bare earth points from the lidar point cloud data. Some areas have limited...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 10:37 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 10:20 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 10:01 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:19 PM -
20 foot contours (2008). This dataset contains locations and attributes of 20-ft interval topography data, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:35 PM -
Mass Points (2008). The dataset contains DTM masspoints derived photogrammetrically to support 2’ contours. Masspoints and breaklines were compiled from Spring 2008 aerial photography using...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:35 PM -
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 17, 2026 at 07:27 PM -
This digital geospatial data set consists of structure contours of the base of the Laramie-Fox Hills aquifer and the base of the Arapahoe aquifer along the Front Range of Colorado. The U.S....
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 09, 2026 at 11:12 PM -
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 07:53 PM -
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 07:49 PM
