The protected areas of Georgia cover almost one million acres (4,000 km2) of the state. These areas are managed by different federal and state level authorities and receive varying levels of protection. Some areas are managed as wilderness while others are operated with acceptable commercial exploitation. On the Federal level, Georgia contains 1 Biosphere Reserve, 15 National Park Service Managed Sites, 1 National Forest and 8 Wildlife Refuges. Georgia is home to 63 state parks, 48 of which are state parks and 15 that are National Historic Sites, and many state wildlife preserves, under the supervision of the Georgia Department of Parks and Recreation, a division of the Georgia Department of Natural Resources.[1]