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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.

Dye injected into a stream enters a swallow hole in the Madison Limestone Dye injected into a stream enters a swallow hole in the Madison Limestone. The fluorescein dye from this injection was detected in five wells located as much as 2 miles northeast of the injection site. Read more about the Madison aquifer...
Cripple Crawfish Sinkhole, south of Austin, Texas Cripple Crawfish Sinkhole, south of Austin, Texas. Located within the creekbed of Onion Creek, a water vortex indicates rapid infiltration of water into the Edwards aquifer. (Photo courtesy of David A. Johns, City of Austin) Read more about the Edwards Balcones Fault Zone aquifer...
Loss of water from the Peace River through underlying conduit during low-flow period, May 2004 Loss of water from the Peace River through underlying conduit during low-flow period, May 2004. The Peace River in this area is characterized by shallow, sometimes exposed carbonate units, with karst features that vary in type and size and include sinkholes, subsidence depressions, dissolution pipes, and enlarged fractures. (from Spechler and Kroening, 2006) Read more about the Upper Floridan and Biscayne aquifers...
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...
Byrds Mill Spring Byrds Mill Spring. USGS Hydrologist Scott Christenson collects a water sample from Oklahoma’s largest spring. (Photo by Noel Osborn, Ok. Water Resources Board) 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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URL: http://water.usgs.gov/ogw/karst/index
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Page Last Modified: Monday, 30-Jan-2012 16:39:46 EST