Most of the Escarpment, including all its mountaintops and ridges, has been acquired by the state and added to the Forest Preserve, requiring that it be kept forever wild. Private land is found only in the cloves, where some of it is also protected. The Forest Preserve lands are divided into management units by the state Department of Environmental Conservation (DEC). Initially all of the state lands save North-South Lake Public Campground were classified as Wild Forests, a protection level unique to New York that is slightly less restrictive than wilderness. In 2008 an updated Catskill State Land Master Plan combined the North Mountain, Windham High Peak and Blackhead Range Wild Forests into one new unit, the Windham-Blackhead Range Wilderness. Two old roads through the Escarpment were also given a new classification, Primitive Bicycle Corridor, to accommodate mountain bikes.