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The Bob Marshall Wilderness Complex Located in Northwestern Montana on both sides of the Continental Divide, this large complex includes three Wilderness areas: the Great Bear, the Scapegoat, and the Bob Marshall Wilderness. Together the Bob Marshall Wilderness Complex makes up an area of more than 1.5 million acres, the third largest in the lower 48 states. Grizzly bear, lynx, wolverine, deer, elk, gray wolf, moose, black bear, mountain lion, mountain goat, and mountain sheep roam about these rugged ridge tops, gently sloping alpine meadows, thickly forested river bottoms and open grass parks. Across this continuous landscape over 1700 miles of trail provide challenges and experiences to satisfy visitors with a wide range of skills. The Bob Marshall Wilderness was named for Bob Marshall, the early wilderness advocate, explorer and conservationist who promoted the development of effective and meaningful wilderness management. Designated in 1964 with the passage of the Wilderness Act, the Bob Marshall Wilderness is the oldest of the three wilderness areas composing the BMWC. It is also the largest, covering 1,063,503 acres on the Flathead (Spotted Bear Ranger District) and Helena-Lewis and Clark (Rocky Mountain Ranger District) National Forests. There are approximately 1,100 miles of system trail in this wilderness. Much of the area now comprising the Bob Marshall Wilderness was originally protected as the South Fork, Pentagon and Sun River Primitive Areas, which were established in 1931, 1933, and 1934 respectively. In 1978, additional lands were designated in the Birch Creek area. Then in 2014, additional lands were designated along the Rocky Mountain Front bringing the Bob Marshall Wilderness to its current size. The Continental Divide separates the Bob Marshall Wilderness into the Flathead and Sun River drainages, with elevations ranging from 4,000 feet to more than 9,000 feet. A huge escarpment called the Chinese Wall, is one of the most spectacular features of the landscape, averaging 1,000 feet in height and extending 22 miles. East of the Divide, the mountains of the Rocky Mountain Front rise from the plains, with elevations of 2,000 to 8,000 feet, and extend over 60 miles from north to south along the eastern edge of the Wilderness area. This wilderness area is host to the popular Wild and Scenic South Fork of the Flathead River as well as the many lakes, concentrated in the South Fork drainage, including the largest in the BMWC, Big Salmon Lake (972 acres).
Maps
Digital and paper maps are critical tools for wilderness visitors. Online maps can help you plan and prepare for your visit ahead of time. You can also carry digital maps with you on your GPS unit or other handheld GPS device. Having a paper map with you in the backcountry, as well as solid orienteering skills, however, ensures that you can still route-find in the event that your electronic device fails.
Online Maps
Printed Maps
Rules & Regulations
Motorized equipment and equipment used for mechanical transport is generally prohibited in all wilderness areas.
This includes the use of motor vehicles, motorboats, motorized equipment, bicycles, hang gliders, wagons, carts, portage wheels, and the landing of aircraft including helicopters.
Wilderness-Specific Regulations
Learn more about
why regulations may be necessary in wilderness.
Applicable Wilderness Law(s)
Date: October 28, 1978
Acreage: 60,000 acres
(No official title, designates Great Bear Wilderness) - Public law 95-546 (10/28/1978) To designate the Great Bear Wilderness, Flathead National Forest, and enlarge the Bob Marshall Wilderness, Flathead and Lewis and Clark National Forests, State of Montana
For more information (To download or see all affected Wilderness areas) visit our law library for 95-546 or legislative history for 95-546 for this law.
Date: December 19, 2014
Acreage: 50,401 acres
National Defense Authorization Act for Fiscal Year 2015 - Public law 113-291 (12/19/2014) To authorize appropriations for fiscal year 2015 for military activities of the Department of Defense, for military construction, and for defense activities of the Department of Energy, to prescribe military personnel strengths for such fiscal year, and for other purposes.
For more information (To download or see all affected Wilderness areas) visit our law library for 113-291 or special provisions for 113-291 or legislative history for 113-291 for this law.
Date: May 5, 2017
Acreage: -603 acres
Consolidated Appropriations Act, 2017 - Public law 115-31 (5/5/2017) Making appropriations for the fiscal year ending September 30, 2017, and for other purposes.
For more information (To download or see all affected Wilderness areas) visit our law library for 115-31 or legislative history for 115-31 for this law.
Want to Volunteer for Wilderness?
Citizens who volunteer their time to steward our wilderness areas are an essential part of wilderness management. Contact the following groups to inquire about volunteer opportunities.