Mt. Cuba Center's Natural Lands consist of nearly 550 acres located in Delaware’s Appalachian Piedmont. The natural areas are comprised of steeply rolling hills, stream valleys, rock outcrops, and deciduous forests. Some of the most impressive examples of Appalachian Piedmont geography, flora, and fauna in Delaware can be found in Mt. Cuba Center’s Natural Lands which surround the gardens and managed landscapes. These natural areas are a precious resource and critical to preserving the integrity of the remaining natural habitats of this physiographic region in Delaware.