Image:Ogallala changes in feet 1980-1995 USGS.gif
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Description: A browse image of the water-level-change contours data set for the High Plains aquifer, 1980 to 1995. Data_Set_Credit: McGuire, Virginia L. and Sharpe, Jennifer B.
Source: United States Geological Survey[1]
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This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy |
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