In parts of western Nebraska, where the Ogallala is plentiful ... and Oklahoma had been condemned on maps as the Great American Desert, but the cruelest assessment came from the diarist of ...

Map: The Ogallala Aquifer: A Freshwater Bonanza in Decline. Click image to enlarge. This map was created by graphic designer Erin Aigner, with research assistance from Brett Walton of Circle of Blue.