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Federal
Surface and subsurface geologic data from previous USGS studies of the Gulf Coast region, south-central United States
Department of the Interior —
This dataset captures in digital form the results of previously published U.S. Geological Survey (USGS) Water Mission Area studies related to water resource... -
Federal
Digital data from previous USGS hydrogeologic studies of the Gulf Coast region, south-central United States
Department of the Interior —
This dataset captures in digital form the results of previously published U.S. Geological Survey (USGS) Water Mission Area studies related to water resource... -
Federal
Digitized Contours of Georeferenced Plate 1900 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980)
Department of the Interior —
The potentiometric surface of the Sparta Sand in northern Louisiana is shown by contours on four maps. Maps for 1900, 1965 , and spring 1975 are generalized, small-... -
Federal
Georeferenced Maps of the Thickness of the Sparta Aquifer in MS, AR, and LA, 1961 to 1996
Department of the Interior —
The Sparta aquifer is a primary source of groundwater in north-central Louisiana. In 2015, more than 60 million gallons per day were withdrawn from the Sparta... -
Federal
Digitized Contour from Georeferenced Plate 2005 from "Status of Water Levels and Selected Water-Quality Conditions in the Sparta-Memphis Aquifer in Arkansas and the Status of Water Levels in the Sparta Aquifer in Louisiana, Spring 2005" (Schrader and Jones, 2007; version 1.1, April 2021)
Department of the Interior —
The U.S. Geological Survey in cooperation with the Arkansas Natural Resources Commission, the Arkansas Geological Commission, and the Louisiana Department of... -
Federal
Digitized Contours from Georeferenced Plate 1975 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980; version 1.1, April 2021)
Department of the Interior —
The potentiometric surface of the Sparta Sand in northern Louisiana is shown by contours on four maps. Maps for 1900, 1965 , and spring 1975 are generalized, small-... -
Federal
Hydraulic Conductivity and Transmissivity Estimates from Slug Tests in Wells Within the Mississippi Alluvial Plain, Arkansas and Mississippi, 2020
Department of the Interior —
During the spring and summer of 2020, the U.S. Geological Survey, Lower Mississippi – Gulf Water Science Center, conducted single well slug tests on selected wells... -
Federal
Digitized Contour from Georeferenced plate 2007 from "Potentiometric Surface in the Sparta-Memphis Aquifer of the Mississippi Embayment, Spring 2007" (Shrader, 2008; version 1.1, April 2021)
Department of the Interior —
The most widely used aquifer for industry and public supply in the Mississippi embayment in Arkansas, Louisiana, Mississippi, and Tennessee is the Sparta-Memphis... -
Federal
Georeferenced Plate 3, 1968, from "Hydrologic significance of the lithofacies of the Sparta Sand in Arkansas, Louisiana, Mississippi, and Texas" (Payne, 1968)
Department of the Interior —
The study of the geohydrology of the Sparta Sand is the initial phase in the investigation of the geohydrology of the Claiborne Group. The thicker sections of the... -
Federal
Digital Data of Structural Contours from Previously Published USGS Mississippi Embayment Studies
Department of the Interior —
This digital dataset is a result from the goal within the U.S. Geological Survey’s (USGS) National Cooperative Geologic Mapping Program to convert surficial data that... -
Federal
Digitized Contours from Georeferenced Plate from "Analog simulation of water-level declines in the Sparta Sand, Mississippi Embayment" (Reed, 1972)
Department of the Interior —
A digital dataset of analog simulation of water-level declines in the Sparta Sand, Mississippi Embayment in Missouri, Kentucky, Arkansas, Tennessee, Louisiana, and... -
Federal
Georeferenced Plate 8, 1968, from "Hydrologic significance of the lithofacies of the Sparta Sand in Arkansas, Louisiana, Mississippi, and Texas" (Payne, 1968)
Department of the Interior —
The study of the geohydrology of the Sparta Sand is the initial phase in the investigation of the geohydrology of the Claiborne Group. The thicker sections of the... -
Federal
MODFLOW-2005 model used to evaluate water-management scenarios for the Mississippi Delta
Department of the Interior —
A three-dimensional groundwater flow model (MODFLOW-2005) of the Mississippi embayment, South-Central United States, was developed as part of a national project... -
Federal
Digitized Contours from Georeferenced Plate 1980 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980; version 1.1, April 2021)
Department of the Interior —
The potentiometric surface of the Sparta Sand in northern Louisiana is shown by contours on four maps. Maps for 1900, 1965 , and spring 1975 are generalized, small-... -
Federal
Digitized Contours from Georeferenced Plate 1965 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980; version 1.1, April 2021)
Department of the Interior —
The potentiometric surface of the Sparta Sand in northern Louisiana is shown by contours on four maps. Maps for 1900, 1965 , and spring 1975 are generalized, small-... -
Federal
MODFLOW-NWT models and calibration files for the Mississippi Alluvial Plain, USA
Department of the Interior —
The existing three-dimensional groundwater flow model (MODFLOW-2005) of the Mississippi Embayment Regional Aquifer system (MERAS), South-Central United States, was... -
Federal
Georeferenced Plate 10, 1968, from "Hydrologic significance of the lithofacies of the Sparta Sand in Arkansas, Louisiana, Mississippi, and Texas" (Payne, 1968)
Department of the Interior —
The study of the geohydrology of the Sparta Sand is the initial phase in the investigation of the geohydrology of the Claiborne Group. The thicker sections of the...