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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.

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...
Waterfall in Mammoth Cave Nat. Park Waterfall in Mammoth Cave Nat. Park. Recent rainfall has activated a large waterfall in the so-called Mammoth Dome, cascading water down on the path used by visistors through the cave. (Photo by Dan Doctor) Read more about Paleozoic karst aquifers of the Midwest...
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...
Barton Spring Pool, Austin, Texas Barton Spring Pool, Austin, Texas. A public swimming pool visited by over 300,000 people annually. The pool is filled by discharge from Main Barton Spring, and is a centerpiece of political and environmental dialog. (Photo courtesy of the City of Austin) Read more about the Edwards Balcones Fault Zone aquifer...
Sinkholes from subsidence event, Florida, February 1998
Sinkholes from subsidence event, Florida, February 1998. Over 700 sinkholes formed over a 20-acre area in response to well drilling. A well had been drilled about 20 feet into a cavity, when air-lift well-development methods began being used. Immediately after, small sinkholes started appearing in the surrounding area. Subsidence continued for several hours, with sinkholes closest to the well expanding to become the largest in the area. (Photo by Ann Tihansky) Read more about the Upper Floridan and Biscayne aquifers...

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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URL: http://water.usgs.gov/ogw/karst/index
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Page Last Modified: Monday, 30-Jan-2012 16:39:46 EST