(Ohio)
Edge of Appalachia Preserve, also known as Richard and Lucile Durrell Edge of Appalachia Preserve System or simply The Edge, is a series of ten adjacent nature preserves located along the Appalachian Escarpment in Adams County, Ohio. Four of the ten preserves, Lynx Prairie, Buzzardroost Rock, Red Rock and The Wilderness, are National Natural Landmarks. The Preserve is owned and operated by The Nature Conservancy and Cincinnati Museum Center. It is the largest privately owned nature preserve in Ohio. (Ref: https://en.wikipedia.org/wiki/Edge_of_Appalachia_Preserve)