Montana Highway 200

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Montana Highway 200 marker

Montana Highway 200
Route information
Maintained by MDT
Length706.272 mi[2] (1,136.635 km)
ExistedOctober 1967[1]–present
Major junctions
West end SH 200 northwest of Heron
  US 93 from Ravalli to Missoula
I-90 from Wye to Bonner
US 12 from Missoula to Bonner
US 287 near Milford Colony
US 89 from Sun River to Armington
I-15 from Vaughn to Great Falls
US 87 from Great Falls to Grass Range
US 191 from near Hobson to Lewistown
East end ND 200 at Fairview
CountiesRichland, Dawson, McCone, Garfield, Petroleum, Fergus, Judith Basin, Cascade, Lewis and Clark, Powell, Missoula, Lake, Sanders
Highway system
US 191MT 200S

Montana Highway 200 (MT 200) in the U.S. state of Montana is a route running east-west covering the entire state of Montana. From the starting point at ID 200, near Heron, Montana the highway runs east to ND 200 near Fairview, Montana. It is part of a chain of state highways numbered 200 which extend from Idaho across Montana, North Dakota and Minnesota. Montana Highway 200 is also the longest route signed as a state highway in the United States.

Highway 200 and US 93 southbound

Highway 200 helps to connect many small towns located in central Montana and the vast plains area of eastern Montana, to larger western Montana cities such as Great Falls and Missoula.

The highway runs parallel to the Blackfoot River from McNamara to Milltown. The highway is subject to hazardous driving conditions in the winter, particularly due to black ice. The road crosses Rogers Pass on the continental divide on its way west to Missoula.

At its western end, west of Missoula, Highway 200 follows the Clark Fork River eastward at the feet of the Cabinet Mountains until it meets the Flathead River at MT 135. It then follows the Flathead River east to Dixon where the Flathead River turns north. Highway 200 continues east following the Jocko River until it intersects with US 93 at Ravalli. The highway then bends south to join I-90 going east into Missoula.


Today's Highway 200 is part of a four-state chain of such routes, but it did not begin that way. It was assembled from other state and federal routes over the years.

The status of the routes and route segments that became Highway 200 in 1937.[3]

  • The section from the Idaho line to Ravalli was the original MT 3.
  • No concurrency from Ravalli to Missoula on US 93 or US 10.
  • The section from Bonner to Sun River was then MT 20, and much was yet to be constructed. The route even followed segments of today's MT 21 to Augusta and future US 287 (then MT 33).
  • No concurrency from Sun River to Grass Range along US 87.
  • The section from Grass Range to Circle was part of the original MT 18.
  • The remainder of MT 18 ran from Circle to Glendive, today's MT 200S.
  • The section from Circle to Sidney was Montana 23, ending at then MT 14.
  • MT 14 ran the rest of the way to Fairview.

By 1941, US 10 Alternate (US 10A) had replaced MT 3 as part of an alternate route from Wye to Spokane via Sandpoint and was now concurrent with US 93 to US 10.

Between 1948 and 1959, many construction projects and route redesignations with concurrencies made MT 20 from Bonner to Sidney the baseline for today's MT 200. MT 23N replaced MT 14 from Sidney to Fairview and MT 20S replaced MT 18 from Circle to Glendive.

In 1960, MT 20 picked up the Sidney to Fairview segment.

By 1969, the entire MT 20 had become MT 200 and included the former US 10A from Idaho to Wye, and following US 10 and 93 through Missoula. MT 20S became 200S.

Major intersections[edit]

Sanders0.0000.000 SH 200 west – SandpointContinuation into Idaho
10.41816.766 MT 56 north to US 2 – Troy
49.10279.022 S-471 west (Prospect Creek Road)Forest Highway 7, seasonal access to Thompson Pass (S-471) and Cooper Pass (FR-7623, Prospect Creek Road)
56.01390.144 S-556 north (Thompson River Road)
76.706123.446 MT 28 east – Hot Springs, Kalispell, Glacier Park
85.030136.843 MT 135 south to I-90 – St. Regis
Perma95.617153.881 S-382 north – Hot Springs
Dixon109.750176.626 S-212 north – National Bison Range, Moiese, Charlo
LakeRavalli115.787186.341 US 93 north – KalispellWest end of US 93 overlap
S-559 east (Jocko Road)
Missoula S-574 west (Waldo Road / Frontage Road) – Frenchtown
Wye143.004230.143 I-90 west – Coeur d'AleneWest end of I-90 overlap; MT 200 west follows exit 96
146.612235.949Airway BoulevardI-90 exit 99
Missoula148.388238.807 I-90 Bus. east / US 93 south (Reserve Street) – HamiltonEast end of US 93 overlap; I-90 exit 101
151.451243.737Orange StreetI-90 exit 104
152.315245.127 I-90 Bus. west / US 12 west (Van Buren Street)West end of US 12 overlap; I-90 exit 105
East Missoula153.940247.742East MissoulaI-90 exit 107
West Riverside156.885252.482 I-90 east / US 12 east – ButteEast end of I-90 / US 12 overlap; MT 200 east follows exit 109
Bonner S-210 east
Clearwater Junction189.465304.914 MT 83 north – Seeley Lake, Kalispell, Glacier National Park
Powell213.308343.286 MT 141 south – Avon, Helmville
Lewis and Clark S-279 south – Helena
Rogers Pass248399Continental Divide (elevation 5,610 ft or 1,710 m)
S-434 south – Wolf Creek, Bean Lake
Bowman's Corner266.655429.140 US 287 – Augusta, Wolf Creek
CascadeSimms MT 21 west – Augusta
S-565 north
Sun River297.069478.086 US 89 north – Fairfield, Choteau, Glacier National ParkWest end of US 89 overlap
Vaughn305.044490.921 I-15 north – ShelbyWest end of I-15 overlap; MT 200 west follows exit 290
309.142497.516ManchesterI-15 exit 286
313.020503.757 To US 87 north / Northwest BypassEastbound exit and westbound entrance; I-15 exit 282
Great Falls314.999506.942 I-15 Bus. south (Central Avenue West) to US 87 northI-15 exit 280
316.588509.499 I-15 south – HelenaEast end of I-15 overlap; west end of I-315 / MT 3 overlap; MT 200 east follows exit 278
316.923510.03814th Street SouthwestI-315 exit 0
317.416510.832Fox Farm Road / 6th Street SouthwestEast end of I-315 overlap
I-15 Bus. north (6th Street South)west end of I-15 Bus. overlap
US 87 north (15th Street South) – Black Eagle, HavreWest end of US 87 overlap
US 87 Byp. north (57th Street) – Malmstrom AFB, Montana Veterans Memorial, Lewis & Clark Interpretive Center, Giant Springs State Park
S-228 north / S-227 south – Highwood, Sand Coulee
S-331 north – Belt
Armington Junction342.240550.782 US 89 south – Monarch, White Sulphur SpringsEast end of US 89 overlap
Judith Basin S-427 south – White Sulphur Springs
Geyser S-551 north – Geyser
378.939609.843 MT 80 north – Stanford, Fort Benton
S-541 south
S-207 north – Benchland
Moccasin S-426 north
S-239 west – Hobson, Utica
FergusEddies Corner406.937654.902 US 191 south / MT 3 south – HarlowtonEast end of MT 3 overlap; west end of US 191 overlap
US 87 Bus. south / US 191 Bus. north / MT 200 Bus. east – Lewistown
Lewistown S-237 north (Joyland Road)
US 191 north – Maltawest end of US 191 Bus. overlap

US 87 Bus. north / US 191 Bus. south / MT 200 Bus. west (West Main Street) / S-238 south (First Avenue South) – Great Falls
east end of US 191 Bus. overlap
454.798731.926 US 87 south / MT 19 north – Malta, BillingsEast end of US 87 overlap
PetroleumWinnett S-244 south – Winnett
S-500 south
Garfield552.525889.203 MT 59 south – Miles City
Jordan S-245 west – Hell Creek State Park, Airport
S-341 north
county line
Flowing Well588.970947.855 MT 24 north – Fort Peck
McCone S-253 south – Brockway
S-467 east
Circle S-252 west
620.305998.284 MT 13 north – Wolf Point
621.349999.964 MT 200S east – Glendive
DawsonRichey S-254 – Richey, Glendive
Richland692.3961,114.303 MT 16 south / MT 23 east – Watford City, GlendiveWest end of MT 16 overlap
Sidney694.9641,118.436 MT 16 north – Regina, Culbertson, AirportEast end of MT 16 overlap
Fairview S-201 west
706.6241,137.201 ND 200 east – WillistonContinuation into North Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related route[edit]

Montana Highway 200S
Length48.674 mi[2] (78.333 km)

Montana Highway 200S (MT 200S) is a spur route of MT 200 that branches off of the main route near Circle and ends at I-94 in Glendive.

MT 200S was originally part of MT 18, renamed MT 20S when MT 23 from Circle to Sidney was renamed MT 20, and received its current name when MT 20 was renamed MT 200.[4]

In the state road log, MT 200S picks up the mileposts from route N-57 (C000057) from mileposts 279.109 to 327.783, for a total of 48.674 miles (78.333 km).

See also[edit]


  1. ^ "New Map Changes Route 20". The Havre Daily News. October 18, 1967. p. 4. Retrieved June 19, 2018 – via open access
  2. ^ a b Staff (2013). "Montana Road Log" (PDF). Montana Department of Transportation. Retrieved May 1, 2017.
  3. ^ Texaco; Rand McNally and Company (1937). Road map: Idaho, Mont., Wyo (Map). Chicago: Rand McNally and Company. Retrieved April 28, 2017 – via David Rumsey Map Library.[full citation needed]
  4. ^ a b "Highway Route Number Changed". The Billings Gazette. October 2, 1967. p. 27. Retrieved June 19, 2018 – via open access

External links[edit]

Route map:

KML is from Wikidata