Lander Field Office 1335 Main Street Lander, WY 82520
The best access route to Green Mountain is Green Mountain Road (BLM Road 2411), an improved gravel road which intersects U.S. Highway 287 about six miles east of Jeffrey City.
Green Mountain is located in southcentral Wyoming about ten miles south of Jeffrey City and about 50 miles northwest of Rawlins (as the crow flies). It contains the Cottonwood Campground, the only developed recreation facilities in an alpine setting in a several hundred square-mile area.
Named for the green timber which covers it, Green Mountain and its neighbors, Crooks Mountain to the west and Whiskey Peak to the east, comprise a small mountain range by Rocky Mountain standards. Green Mountain has no hard rock core but was formed from sediments eroded from the much older Granite Mountains just to the north. Crooks Mountain and its adjacent Crooks Gap and Crooks Peak were named after Civil War veteran and Indian fighter General George H. Crook.
The area has spectacular views of the surrounding Wyoming landscapes and excellent deer and elk hunting. If you're a rock hunter, both jade and agate are found in the surrounding areas. Wild horses can be seen in the area year-round.
Green Mountain does have a seasonal closure that runs from December 1 to June 15.