A history of the Ogallala aquifer traces its formation after the retreat of the glaciers; its use by ancient tribes, center-pivot sprinkler systems, and sophisticated extraction technologies; and the risk factors for its eventual drying out. Title: Ogallala Blue Author: Ashworth, William Publisher: W W Norton & Co Inc Publication Date: 2006/06/01 Number of Pages: 330 Binding Type: HARDCOVER Library of Congress: 2006007090 BRAND : ASHWORTH, WILLIAM SKU : 9780393058420 UPC : 9780393058420
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