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Karst and the USGS

Welcome to the USGS Karst Website. This website presents information on USGS research on karst aquifers, which are a vital groundwater resource in the United States. Here you can learn about past and current USGS karst research, with information on ongoing studies, publications, and key contacts for major karst areas. Click on an aquifer on the map below, or select one from a list of aquifers.

Main Barton Spring, with Barton Springs Pool drained Main Barton Spring, with Barton Springs Pool drained. USGS Research Hydrologist Barbara Mahler makes water-quality measurements of Main Barton Spring. The spring normally discharges under the presssure of 12 feet of overlying water, but here that water had been lowered temporarily, to quantify the water-quality changes it causes. (Photo by Marcus Gary) Read more about the Edwards Balcones Fault Zone aquifer...
A "blue-hole" spring, Orangeville Rise, Indiana A "blue-hole" spring, Orangeville Rise, Indiana. Sixty feet in diameter. (Photo by Chuck Taylor) Read more about Paleozoic karst aquifers of the Midwest...
Endangered Barton Springs Salamander Endangered Barton Springs Salamander. The Barton Springs Salamander, Eurycea sosorum, is a federally listed endangered species. It has been found only in and around the major springs of the Barton Springs segment of the Edwards aquifer. (Photo courtesy of Lisa O'Donnell, City of Austin) Read more about the Edwards Balcones Fault Zone aquifer...
Streamflow tracer test on a tributary to Hopewell Run near Leetown, WV Streamflow tracer test on a tributary to Hopewell Run near Leetown, WV. U.S. Environmental Protection Agency scientist Malcolm Field conducts this test. It was conducted to assess potential leakage of stream water to the karst aquifer in the northern Shenandoah Valley of West Virginia. (Photo by Carol Boughton) Read more about karst aquifers of the Valley and Ridge, Piedmont, and Blue Ridge province...
Byrds Mill Spring Byrds Mill Spring. Oklahoma's largest spring and the primary water supply for the City of Ada, Oklahoma. (Photo by Scott Christenson) Read more about the Arbuckle-Simpson aquifer...

This website allows you to browse for karst reports and articles authored by USGS researchers, and find links for other karst resources. There is also an overview of karst and its properties.

This website is maintained by members of the USGS Karst Interest Group, whose (KIG), who investigate karst across the United States.

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Page Last Modified: Monday, 30-Jan-2012 16:39:46 EST