Limestone Caves
4c. Karst catchments
Karst is the term used for the distinctive landforms of catchments
on limestone and other soluble rocks. Karst landforms include:
- underground drainage where water has dissolved the rock forming caves
- gorges and sink holes which capture surface streams leaving dry valleys.
The topographic map below displays some of these features with a gorge
in the area of the Natural Bridge (a cave where all of the Yarrangobilly
River runs through a hillside) and sink holes capturing creeks.
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