|Eastern Mojave Vegetation||Ash Meadows National Wildlife Refuge, Nye County, Nevada.|
Ash Meadows National Wildlife Refuge (NWR), located 90 miles northwest of Las Vegas, NV encompasses over 22,000 acres of spring-fed wetlands and alkaline desert uplands. The Refuge is a major discharge point for a vast underground aquifer system stretching 100 miles to the northeast. Water-bearing strata comes to the surface in more than 30 seeps and springs, providing a rich and complex variety of habitats. Over 10,000 gallons per minute flow year round, most of which comes from seven major springs: Fairbanks, Rogers, Longstreet, Crystal, Point of Rocks, Jackrabbit, and Big Springs. The reason for this abundance of water in an otherwise dry and desolate region is the presence of a geological fault. The movement of this particular fault acts as an "underground dam," blocking the flow of water and forcing it to the surface. The water arriving at Ash Meadows is called "fossil" water, because it is believed to have entered the ground water system thousands of years ago (U. S. Fish and Wildlife Service, Ash Meadows National Wildlife Refuge, Home Pate at: http://desertcomplex.fws.gov/ashmeadows/index.htm).
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Date and time this article was prepared:5:33:52 PM, 7/13/2018.