273 Forest Service, 15 BLM and 15 National Park Service. 231 take reservations
The coldest reading on record in the contiguous United States 7
-70°F
Rogers Pass, 40 miles northwest of Helena, January 20, 1954
The vehicle length limit on Going-to-the-Sun Road 25
21 ft
Between Avalanche Creek and Rising Sun, with a width limit of 8 feet including mirrors
Four-wheel drive where the road asks for it
Few Montana routes demand low range, but several ask for real traction. The Forest Service recommends four-wheel drive on the Magruder when the road is snow covered or muddy, and the BLM says many sections of the Missouri Breaks byway are recommended only for high-clearance vehicles with four-wheel drive.
A 4x4 shop here should talk about clearance, tire choice for clay, recovery points and gearing for a loaded vehicle at 7,400 to 9,500 feet on the Gravelly Range Road, rather than about crawl ratios for rock.
A 4x4 shop is where parts become a working vehicle. Most sell and install the major brands, and the better ones will talk you out of parts you do not need. For overland use, ask them to think about reliability and weight rather than looks.
Typical work
01Differential gears and lockers
02Armor: bumpers, sliders and skid plates
03Winch and recovery point installation
04Lift, wheels and tires
05Lighting, compressors and wired accessories
How to choose a 4x4 shop
Ask about the unglamorous work.
01Ask what they drive and where. Shops that travel build differently from shops that only show.
02Ask about differential work specifically if you need gears or lockers. Setting up gears is a skill, and a bad setup is loud and short-lived.
03Ask how they wire accessories: fused, relayed, loomed and labeled, or tapped into whatever was nearby.
04Ask about weight. Every part they sell you is weight you carry forever.
What to have ready before you ask for a quote
Start from the problem, not the part.
01Year, model and drivetrain
02Tire size and any lift
03What you want the vehicle to do that it cannot do now
04What is already installed
05A budget range
Questions people ask
Do I need lockers?
For most dirt-road travel, no. Good tires at the right pressure and careful driving go a long way, and many modern 4x4s have capable traction control. A rear locker becomes worth it when you regularly cross terrain where a wheel leaves the ground.
Winch or no winch?
If you travel alone, a winch is the one recovery tool that does not need a second vehicle. It also needs a bumper that can carry it, a battery that can feed it, and practice. If you always travel with others, traction boards and a rope may be enough.
What should I do first?
Tires, then recovery points and basic recovery gear, then whatever your first few trips tell you is missing. Trips are cheaper than parts and much better at showing you what you need.
How high is Montana?
From Libby at 2,097 feet to Granite Peak at 12,799.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
2,0004,0006,0008,00010,00012,00014,000
Feet above sea level
Towns
Red LodgeWhere the Beartooth Highway starts its climb on US 212, heading for Beartooth Pass and Cooke City.5,568 ft
ButteOn I-90 with the BLM’s Western Montana District office. The Pipestone off-highway vehicle area is about 15 miles east at exit 241.5,535 ft
PhilipsburgIn Granite County, on the far side of Skalkaho Pass from the Bitterroot Valley. Montana 38 over the pass closes for the winter.5,243 ft
DillonHome of the BLM field office that manages more than 900,000 acres in Beaverhead and Madison counties, and the Big Sheep Creek byway to the south.5,097 ft
EnnisOn Montana 287. The Forest Service routes Gravelly Range traffic from here by the Varney road and the Call road, and keeps the area’s maps at its office in town.4,946 ft
BozemanOn I-90. The Custer Gallatin’s Bozeman Ranger District is one of the five west-side districts under the forest’s food storage order.4,811 ft
HelenaState capital, and half the name of the 2.8-million-acre Helena-Lewis and Clark National Forest. Rogers Pass, 40 miles northwest, holds the national cold record.4,048 ft
LewistownBLM field office for the Upper Missouri River Breaks and seat of the North Central Montana District. One of the two offices the BLM names for byway conditions.3,952 ft
DarbyThe Montana end of the Magruder Road Corridor. The Forest Service counts eight to ten hours from Red River, Idaho, to Darby without rest stops.3,884 ft
HamiltonIn the Bitterroot Valley on US 93, near the west end of Montana 38 and in the middle of the 1.6-million-acre Bitterroot National Forest.3,570 ft
WinifredOne end of the Missouri Breaks byway, which the BLM runs between here and the James Kipp Recreation Area on US 191.3,228 ft
MissoulaOn I-90 beside the 2.3-million-acre Lolo National Forest. The BLM field office here manages the Garnet Back Country Byway, which leaves Montana 200 about 30 miles east.3,208 ft
BillingsOn I-90 in south-central Montana. The BLM’s Montana/Dakotas State Office is here.3,122 ft
KalispellIn the Flathead Valley below the 2.4-million-acre Flathead National Forest, west of Glacier National Park.2,955 ft
Fort BentonWhere the Breaks begin on US 87. The Missouri Breaks Interpretive Center here holds maps and road conditions for the monument.2,635 ft
LibbyOn the Kootenai River. The 67-mile Lake Koocanusa Scenic Byway runs north from here to Eureka on Highway 37.2,097 ft
Passes, high roads and summits
Granite PeakThe highest point in Montana, in Park County. No road to the top12,799 ft
Beartooth PassBeartooth Highway (US 212): Red Lodge to Cooke City, by way of the northwest corner of Wyoming10,947 ft
Mount ClevelandThe highest peak in Glacier National Park, by the park’s own figure10,448 ft
Crystal ParkPioneer Mountains Scenic Byway: Montana Highway 484 at Wise River south to County Highway 2787,800 ft
Skalkaho PassSkalkaho Highway (Montana 38): Ravalli and Granite counties, across Skalkaho Pass7,261 ft
Logan PassGoing-to-the-Sun Road: The west entrance of Glacier National Park to the east entrance, over Logan Pass6,646 ft
Nez Perce PassMagruder Road Corridor: Darby, Montana, to Red River, Idaho, between the Selway-Bitterroot and Frank Church wildernesses6,598 ft
Pass, road and summit elevations are the figures published by the agency that manages them. Town elevations are the town’s or county’s own
figure where it publishes an exact one; the rest are from the U.S. Geological Survey (3D Elevation Program at the place’s official coordinates),
retrieved September 18, 2026. Every source is listed at the foot of the page.
Free build quotes
Looking for 4x4 shops in Montana? Tell us about the project and get free quotes.
