This video covers the basics of groundwater engineering, including how wells are built, how injection wells work, and how aquifers interact with surface water features. Trump signs executive order ...

U.S. Forest Service geologist Gordon Grant calls it a “geologic gift.” University of Oregon earth scientist Leif Karlstrom described it as “a big water tower” at the top of the mountains.

The Ogallala Aquifer has been in decline since the mid-20th Century. After World War II, a boom in groundwater irrigation ...