Preserves in the Arc of Appalachia system owned by Highlands Sanctuary • Highlands Nature Sanctuary - 2,068 acres in
Highland County, Ohio, features Appalachian Forest Museum • Spruce Hill Earthworks (an ancient Native American fortification) - 270 acres in
Ross County, Ohio • Morgan's Fork - 147 acres in
Pike County, Ohio • Chalet Nivale - 105 acres in
Adams County, Ohio • Plum Run Prairie - 138 acres in
Adams County, Ohio • Kamama Prairie - 92 acres in
Adams County, Ohio • Hope Springs Woods - 108 acres in
Adams County, Ohio • Gladys Riley Golden Star - 53 acres in
Scioto County, Ohio • Rock Run - 355 acres in
Adams County, Ohio • Ohio River Bluffs - 62 acres in
Adams County, Ohio • Boone Nature Preserve - 35 acres in
Brown County, Ohio • Samson Woods - 78 acres in
Pike County, Ohio •
Serpent Mound - 63 acres in
Adams County, Ohio (owned by the
Ohio Historical Society) •
Fort Hill State Memorial - 1,324 acres in
Highland County, Ohio (owned by the
Ohio Historical Society) ==References==