Daniel Boone National Forest is the only national forest completely within the boundary of Kentucky. Established in 1937, it was originally named the Cumberland National Forest, after the core region called the Cumberland Purchase Unit. About 2,100,000 acres are contained within its current proclamation boundary, of which 706,000 acres are owned and managed by the United States Department of Agriculture Forest Service (as of April 2006), up from around 620,000 acres in the early to mid-1990s.