Acreages of Special Designated Areas listed by mega-region
All acreage figures are rounded to the nearest 1,000.
Forest	National Primitive Area	National Scenic Research Area	National Scenic Area	National Wild & Scenic Rivers	National Recreation Area	National Game Refuge/Wildlife Preserve	National Monument	National Volcanic Monument	National Historic Area	Wilderness Study Area	Research Natural Area	National Widerness  Area	Other Congressionally Designated Areas	Sum
Eastern			15	204	504					39	43	2,022	7	2,835
Western	181	11	165	850	2,572	696	326	172		1,197	462	26,918	1,238	34,787
Alaska					7		3,107			1,970	38	5,603	854	11,579
National Summary	181	11	180	1,054	3,083	696	3,434	172		3,206	543	34,543	2,099	49,201