WCCF has established several important cave preserves. Four have been recognized as Karst Fauna Areas under the Williamson County Habitat Conservation Plan.
- Twin Spring Preserve - karst invertebrates, Golden cheeked warbler and Georgetown salamander
- Cobb's Cavern Preserve - karst invertebrates
- Pricilla's Well Preserve - karst invertebrates
- Karankawa Preserve - karst invertebrates
Two preserves form natural areas within Williamson County’s Southwest Regional Park - Millenium Preserve and Wilco Preserve. Two preserves in the southern part of the county provide additional karst habitat - Beck Preserve and Chaos Cave Preserve. Also the WCCF manages several smaller preserve areas in various parts of the county. Most provide habitat for karst invertebrates.
To inquire about Williamson County's site-specific Leave No Trace training for preserve areas please send an email to firstname.lastname@example.org. Now only the Twin Springs Preserve is available for public access but plans are to provide access to the greatest extent possible using a "Leave No Trace for Williamson County Preserves" training.