A new Web site presents a collection of information and links about "all things karst" in the U.S. Geological Survey (USGS), including research publications, data, and key contacts for major karst areas in the U.S. 

At http://water.usgs.gov/ogw/karst/   users can click on a map of karst aquifers in the nation to learn about ongoing USGS research, browse for reports and articles on karst authored by USGS researchers, and view a changing array of photos of karst aquifers, which are a vital groundwater resource across the country. The photos are available for public use. Please just remember to give proper credit. The bibliography has active links to many journal articles and USGS reports online.