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The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]
English: Digital map of the saturated thickness of the High Plains aquifer in parts of Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas and Wyoming, 1996-97. Produced from GIS data produced by the USGS and published in Open File Report 00-300 (USGS OFR 00-300). Researchers: Fischer, Brian C.; Kollasch, Keith M.; McGuire, Virginia L.
English: Map of water-level changes in the High Plains/Ogallala Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1980 to 1995. Created from public domain data produced by the USGS and made available in Open-File Report 99-197 [1] [2] .
Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.
The Sandhills sit atop the massive Ogallala Aquifer; thus both temporary and permanent shallow lakes are common in low-lying valleys between the grass-stabilized dunes prevalent in the Sandhills. [4] The eastern and central sections of the region are drained by tributaries of the Loup River and the Niobrara River , while the western section is ...
English: This map shows the estimated fresh water usage per square mile in the year 2000 for counties in the eight states underlain in part by the High Plains (Ogallala) Aquifer, presented as million gallons per square mile and million liters per square kilometer.
The Ogallala Aquifer is one of the world's largest aquifers spanning almost the entire state of Nebraska, except for a small section of the Nebraska Panhandle and areas in the east near the Missouri River. Nebraska hydrogeology is known through extensive irrigation well drilling for agriculture.
Ogallala is a city in and the county seat of Keith County, Nebraska, United States. [3] The population was 4,878 at the 2020 census , up from 4,737 at the 2010 census . In the days of the Nebraska Territory , the city was a stop on the Pony Express and later along the transcontinental railroad .