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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.

Upper Barton Spring, Austin, Texas Upper Barton Spring, Austin, Texas. Located in the creekbed of Barton Creek, this karst spring has been monitored by the USGS periodically. The results of those monitoring efforts have indicated that, despite being less than 1 kilometer from the much larger Main Barton Spring, its water has a substantially different major-ion and contaminant geochemistry. (Photo by Brad Garner) Read more about the Edwards Balcones Fault Zone aquifer...
Buffalo Spring Buffalo Spring. Located in Chickasaw National Recreation Area. (Photo by Scott Christenson) Read more about the Arbuckle-Simpson aquifer...
Sinkhole-formed lakes near Winter Haven, FL Sinkhole-formed lakes near Winter Haven, FL. These sinkholes, which often are filled with permeable surficial sands, provide more direct avenues for water from the surficial aquifer system to recharge the underlying Upper Floridan aquifer. (from Spechler and Kroening, 2006) Read more about the Upper Floridan and Biscayne aquifers...
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...
Turner Falls Turner Falls. The largest waterfall in Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls. (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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Page Last Modified: Monday, 30-Jan-2012 16:39:46 EST