Download or read book Ogallala Blue written by William Ashworth and published by W. W. Norton. This book was released on 2006 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.