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The Chicot aquifer system underlies an area of approximately 9,500 mi2 in southwestern Louisiana and is located within the Gulf Coastal Plain physiographic province. The region includes all or...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: May 05, 2026 at 08:06 PM -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 09:52 PM -
These data represent the extent of the Upper Hell Creek hydrogeologic unit in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 08:42 PM -
The data set pp1773_extents contains polygon datasets that represent the areal extents of each of the 16 hydrogeologic units of the of the Atlantic Coastal Plain of North and South Carolina. [The...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 09:37 PM -
A three-dimensional, steady-state groundwater-flow model representing 2003-13 mean hydrologic conditions was developed and calibrated to assess groundwater and lake-water exchanges and the...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 09:48 PM -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 08:39 PM -
These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the lower Fort Union aquifer in the Williston structural basin. The data are presented as ASCII...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: June 09, 2026 at 11:25 PM -
These data represent the extent of the lower Fort Union aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 07:53 PM -
Baseflow is the portion of streamflow derived from groundwater flow. It is an important component of the groundwater budget, and can be estimated using known total streamflow at given points...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: June 09, 2026 at 11:56 PM -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 07:33 PM -
Baseflow is the portion of streamflow derived from groundwater flow. It is an important component of the groundwater budget, and can be estimated using known total streamflow at given points...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 10:11 PM -
This data release includes a polygon shapefile of grid cells attributed with values representing the simulated base-flow, evapotranspiration, and groundwater-storage depletions as a percentage of...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 09, 2026 at 10:57 PM -
PP1773_unit_alt_grid is a polygon shapefile of surface altitudes for 16 hydrogeologic units as described in report Professional Paper 1773. Surface altitudes were interpolated and discretized to...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:18 PM -
These data represent the thickness, in feet, of the Upper Hell Creek hydrogeologic unit in the Powder River basin. The data are presented as ASCII text files that can be converted to continuous...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 09, 2026 at 11:53 PM -
These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the Upper Hell Creek hydrogeologic unit in the Williston structural basin. The data are...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:13 PM -
These data represent the extent of the Fox Hills aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 09, 2026 at 11:47 PM -
This data release includes a polygon shapefile of grid cells attributed with values representing the simulated base-flow, evapotranspiration, and groundwater-storage depletions as a percentage of...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 08:47 PM -
These data represent the extent of the upper Fort Union aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: June 10, 2026 at 12:00 AM -
These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the middle Fort Union hydrogeologic unit in the Williston structural basin. The data are...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: June 10, 2026 at 12:02 AM -
These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the basal confining unit in the Williston structural basin. The data are presented as ASCII...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: June 09, 2026 at 11:51 PM
