Distinctive landforms and drainage features characterise landscapes formed on rock that exhibits a high degree of solubility in natural waters. These include underground drainage. underground caverns and a variety of surface landforms such as enclosed depressions and fluted rock surfaces. Such terrain is generally known by the German term karst and it gains its fullest expression on limestone. dolomite or evaporite bedrock (Jennings. 1971). This publication examines some of the special problems that confront land managers in karst areas. and the sensitivity of karst to environmental degradation.