Paris Mountain State Park Friends
- Organization uses the park for educational programs, helps improve the park's physical attributes and helps the park rangers as requested. Includes new and schedule. (Greenville)
- http://pmspf.org/new/pages/

Lake Murray Association
- Conducts surveys and environmental studies directed at enhancing the health, safety and welfare of the area. Includes special events, calendar and membership application.
- http://www.lakemurrayassociation.com