U.S. Route 191 in Montana

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This article is about the section of highway in Montana. For the entire length of highway, see U.S. Route 191.
U.S. Highway 191 marker
U.S. Highway 191
US 191 highlighted in red
Route information
Maintained by MDT
Length442.161 mi[1] (711.589 km)
Major junctions
South endYellowstone National Park at West Yellowstone
Major intersections
North end Hwy 4 at the Canadian border at Morgan
Location
CountiesGallatin, Park (Wyoming), Park (Montana), Sweet Grass, Wheatland, Cascade, Phillips
Highway system
  • Montana Highway System
← MT 141→ MT 200

U.S. Highway 191 (US 191) is a north-south United States Numbered Highway in the state of Montana. It extends approximately 442.2 miles (711.7 km) from Yellowstone National Park north to the Canadian border.

Route description[]

US 191 in Montana begins at the West Entrance to Yellowstone National Park concurrent with US 20 and US 287, at the edge of the town of West Yellowstone. Some commercially produced maps show US 191 going through Yellowstone National Park; however, it officially has a gap inside the park and resumes in Wyoming at the South Entrance. A few blocks into West Yellowstone, US 20 leaves the US 191 / US 287 concurrency and heads west toward the Targhee Pass and Idaho. The highway heads north, running concurrently with US 287 for eight miles (13 km) before veering slightly east and passing through Yellowstone National Park for 20 miles (32 km), traversing forested, mountainous terrain and briefly following a 5.5-mile (8.9 km) diversion into the state of Wyoming, before leaving the park in the upper reaches of the Gallatin River canyon. The route travels northward through the narrow canyon, past the resort community of Big Sky, then entering the Gallatin Valley near the town of Gallatin Gateway. US 191 travels north and east through the valley to the city of Bozeman, which is the largest city along the entire US 191 route.[1][2]

From Bozeman, US 191 is concurrent with I-90 eastward 60.5 miles (97.4 km) to Big Timber, where it proceeds north. The road travels through hilly ranch country near the eastern edge of the Crazy Mountains to Harlowton, where US 191 is briefly concurrent with US 12. North of Harlowton, US 191 is concurrent with MT 3 for 39 miles (63 km) to Eddie's Corner, where US 191 proceeds eastward to Lewistown on a roadway shared with US 87 and MT 200, in a wrong-way concurrency.[1][2]

US 191 continues north after going through Lewistown, crossing the Missouri River at the Charles M. Russell National Wildlife Refuge, and through Malta, where it shares a brief concurrency with US 2. It ends at the Canada–United States border at Morgan, where the road continues into Saskatchewan as Highway 4 toward Swift Current.[1][2]

History[]

The routing of US 191 has drastically changed through the years, with original route designated in 1926 ran from Idaho Falls, Idaho, to West Yellowstone concurrent with US 20, which existed until 1981 when US 191 rerouted to its current alignment through Wyoming, Utah, and Arizona.[3]

On February 1, 1935, US 191 was extended over Montana Highway 187 (also known as the Gallatin Way) to Bozeman.[4]

In 1996, US 191 was extended from Malta the Canadian border, absorbing former Montana Secondary Highway 242.[3]

Major intersections[]

CountyLocationmi[1]kmExitDestinationsNotes
GallatinYellowstone National Park−2.1−3.4


 To US 20 east / US 191 south / US 287 south (West Entrance Road)		Continuation into Wyoming; US 20/US 191/US 287 resume outside of Yellowstone National Park
West Yellowstone0.0000.000Yellowstone National Park Boundary (West Entrance); closed December-April
0.3650.587 US 20 west (Firehold Avenue) – Idaho FallsNorthern end of US 20 concurrency
​8.72214.037 US 287 north – Hebgen Lake, Ennis, Virginia CityNorthern end of US 287 concurrency
Yellowstone National Park11.14717.939Yellowstone National Park boundary
Park
Wyoming		15.266–
20.722		24.568–
33.349		No major junctions
Gallatin31.47750.657Yellowstone National Park boundary
Big Sky Canyon48.19177.556 MT 64 west (Lone Mountain Trail) – Big Sky
Four Corners82.148132.204 MT 84 west / MT 85 north – Norris, Belgrade
Bozeman89.115143.417 I-90 BL west (7th Avenue)Southern end of I-90 BL concurrency
89.803144.524 MT 86 north (Rouse Avenue) – Bridger Bowl
90.930146.338309 I-90 west – ButteNorthern end of I-90 BL concurrency; eastern terminus of I-90 BL; southern end of I-90 concurrency; exit numbers follow I-90
​97.053156.192313Bear Canyon Road
100.374161.536316Trail Creek Road
103.274166.203319Jackson Creek Road
108.233174.184324Ranch Access
ParkLivingston114.696184.585330 I-90 BL east – Livingston
116.650187.730333 US 89 south – Yellowstone National Park, Livingston City CenterSouthern end of US 89 concurrency
121.598195.693337 I-90 BL west – Livingston
​124.128199.765340 US 89 north – White Sulphur SpringsNorthern end of US 89 concurrency
126.990204.371343Mission Creek Road
134.154215.900350Eastern end Access
136.408219.527352Ranch Access
Sweet Grass​138.015222.114354 S-563 – Springdale
145.798234.639362
Big Timber151.387243.634367 I-90 east – BillingsNorthern end of I-90 concurrency; western terminus of I-90 BL; southern end of I-90 BL concurrency
152.542245.493 S-298 south (McLeod Street)
152.771245.861 I-90 BL east – BillingsNorthern end of I-90 BL concurrency
​154.168248.109 S-478 east
WheatlandHarlowton196.655316.486 US 12 west – White Sulphur SpringsSouthern end of US 12 concurrency
198.041318.716 US 12 east / MT 3 south – BillingsNorthern end of US 12 concurrency; southern end of MT 3 concurrency
Judith Gap215.843347.366 S-279 south
FergusEddies Corner237.274381.855 US 87 north / MT 3 north / MT 200 west – Great FallsNorthern end of MT 3; southern end of US 87/MT 200 concurrency
Lewistown251.609404.925 US 87 south / MT 200 east – LewistownNorthern end of US 87/MT 200 concurrency; western terminus of unsigned US 87 Byp.; southern end of US 87 Byp. concurrency
253.793408.440 S-227 north (Joyland Road)
254.548409.655

 Truck Bypass (US 87 Byp. south) to US 87 / MT 200 – Billings		Northern end of US 87 Byp. unsigned concurrency
​257.017413.629 S-426 (Hanover Road)
Brooks263.726424.426 MT 81 west – Denton
Hilger269.068433.023 S-236 north – Winifred
​297.065478.080 MT 19 south – Grass Range
Phillips​332.852535.673 MT 66 north – Harlem
Malta387.973624.382 US 2 east (North 1st Street East) – GlasgowSouthern end of US 2 concurrency
388.177624.710 US 2 west – HavreNorthern end of US 2 concurrency
​411.591662.392 S-208 north – Whitewater
Morgan442.161711.589Canadian border at the Morgan Border Crossing
Hwy 4 north – Swift CurrentContinuation into Saskatchewan
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Closed/former
  •       Concurrency terminus
  •       Tolled

See also[]

  • Blank shield.svg U.S. roads portal

References[]

  1. ^ a b c d e Road Inventory and Mapping Section (2013). Montana Road Log (PDF). Helena: Montana Department of Transportation. pp. 41, 90–93, 96–97, 103–107, 159, 181–182, 208. Archived from the original (PDF) on January 1, 2020. Retrieved November 27, 2020.
  2. ^ a b c Montana Department of Transportation (2016). Montana Official Highway Map (Map). 1:633,600. Helena: Montana Department of Transportation. §§ C4–E4, E5–I5.
  3. ^ a b Field, Andy; Nitzman, Alex. "U.S. Highway 191". AARoads.[self-published source]
  4. ^ "Gallatin Way Now U.S. Highway 191". The Helena Daily Independent. February 2, 1935. p. 6. Retrieved February 21, 2020 – via Newspapers.com.

External links[]

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U.S. Route 191
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