Tennessee. Tennessee and Cross Creeks National Wildlife Refuge: Come work in beautiful lake surroundings! Seeking volunteers to work in visitor services, biological and maintenance. Covered concrete pads, full RV hookups, laundry facilities and propane provided. 24 hours/week required. RV sites located in Springville, Dover and New Johnsonville, TN. Contact Joan Stevens at: 731-642-2091 or [email protected]