Geological Hazards
The Entire Sharp Farm Sits on Karst Terrain
Karst: What Is It?
Karst: As Detailed at ESI
Karst Waters Institute
Mid-Atlantic Karst Conservancy
Karst Hydrology (A valuable Handbook from Western Kentucky University)
The Karst Conservancy
Karst Topography - Winkipedia
Karst as Geologic Hazard
Related Information on Karst
Sinkholes
Introduction to Karst Environmental Problems - Sinkhole Collapse
Sinkholes, from USGS's Water Science Basics
Boil Holes
Sharps Cave
Flooding
Contamination & Pollution
Karst: What Is It?