Egan, Timothy. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. Boston: Houghton Mifflin Co, 2006.
What is the Ogallala Aquifer?
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.
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