Cedars of Lebanon State Park is a state park in Wilson County, Tennessee, in the southeastern United States. It consists of 900 acres situated amidst the 9,420-acre Cedars of Lebanon State Forest. In the 1940s, botanists noticed unique natural ecosystems found in and around Cedars of Lebanon State Park and Forest. These areas are natural rock gardens called cedar glades. The presence of glades is due to limestone rock coming so close to the surface of the ground that it causes the soil to be thin or absent.