By Dan Modlin
http://stream.publicbroadcasting.net/production/mp3/wkyu/local-wkyu-711847.mp3
Bowling Green, Ky – The preservation of historic karst terrain in areas like southcentral Kentucky is one of the topics being discussed this week at WKU. A national gathering of karst researchers and government agency personnel is taking place at the school. Dan Modlin has more.