The Bighorn National Forest is a U.S. National Forest located in northern Wyoming, United States and consists of over 1.1 million acres (4,500 km2). Created as a US Forest Reserve in 1897, it is one of the oldest government-protected forest lands in the U.S. The forest is well east of the continental divide and extends from the Montana border for a distance of along the spine of the Bighorn Mountains, an outlying mountain range separated from the rest of the Rocky Mountains by Bighorn Basin. Elevations range from along the sagebrush and grass-covered lowlands at the foot of the mountains, to on top of Cloud Peak, the highest point in the Bighorn Mountains. Around 99% of the land is above . The forest is named after the Bighorn River, which is partially fed by streams found in the forest. Streams in the range are fed primarily by snowmelt and snowmelt mixed with driving rainfall. Within the forest is the Cloud Peak Wilderness area in which no motorized or mechanical equipment is allowed. The only access into the wilderness is on foot or horseback. There are of trails in the forest, along with 32 improved campgrounds, lodges, and three scenic vehicular byways. U.S. Route 14 in Wyoming, also known as the Bighorn Scenic Byway, crosses the middle of the wide forest. The Medicine Wheel Passage (U.S. Highway 14A) crosses in the north passing the Medicine Wheel National Historic Landmark, while the Cloud Peak Skyway (U.S. Route 16) crosses the highest pass in the forest (Powder River Pass ) and is located in the southern section of the forest. The forest headquarters is located in Sheridan, Wyoming. There are local ranger district offices in Buffalo, Lovell, and Sheridan. Visitor centers are located at Burgess Junction and near Shell Falls. Burgess Junction, at the intersection of Route 14 and Route 14A about 25 miles from Dayton, also has a ranger station, visitor accommodation, and campgrounds. History The Bighorn National Forest was established as the Big Horn National Forest on 22 February 1897, and encompasses 1,198,080 acres. On 1 July 1908 the name was changed to the Bighorn National Forest through an executive order. In September 1981 the national forest had 1,115,171 acres, with 1,107,670 of those acres being National Forest land. Climate According to the Köppen Climate Classification system, the Bighorn National Forest has a mostly subarctic climate, abbreviated "Dfc" on climate maps.