White River National Forest spans northwest Colorado across a broad stretch of the central Rockies and is the most visited national forest in the United States. Named for the White River, it covers 2,285,970 acres and is known for major ski areas, extensive roads and trails, reservoirs, and rich wildlife habitat. Ten of its peaks rise above 14,000 feet, and eight federally designated wilderness areas lie within it, including Maroon Bells–Snowmass and Flat Tops. Its present boundaries shifted in 1998 with the addition of the Dillon Ranger District, and its management is based in Glenwood Springs with several district offices.