Interstate 90 in Montana

Template:Infobox Interstate/Intrastate In the U.S. state of Montana, Interstate 90 traverses much of the east-west length at nearly 552 miles, connecting motorists between northern Idaho and Wyoming.

History

Until 1995 in Montana near the Idaho border, I-90 was not a divided highway for a few stretches, having only a narrow paved median. From 1995 until 1999, the speed limit in Montana was "reasonable and prudent"; it is now 75 mph (120 km/h). On the I-90, at Exit 00 (right on the MT/ID border) is the Lookout Pass Ski Area, one exit east of there is the Hiawatha Trail (rails-to-trails).

Exit list

County	Location	#	Destinations	Notes
Mineral		0	Lookout Pass
		5	Taft Area
		10	Saltese
		16	Haugan
		18	De Borgia
		22	Henderson
		25	Drexel
		26	Ward Creek Road	Eastbound exit and entrance
		30	Two Mile Road
		33	MT 135 – St. Regis
		37	Sloway Area
		43	Dry Creek Road
	Superior	47	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		55	Lozeau, Quartz
		61	Tarkio
		66	Fish Creek Road
		70	Cyr	Westbound exit and eastbound entrance
	Alberton	75	Alberton
Missoula		77	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		82	Nine Mile Road
		85	Huson
		89	Frenchtown
		96	US 93 north / MT 200 west – Kalispell	West end of US 93/MT 200 overlap
		99	Airway Boulevard
	Missoula	101	I-90 BL east / US 93 south (Reserve Street) – Hamilton	East end of US 93 overlap
		104	Orange Street
		105	I-90 BL west / US 12 west (Van Buren Street)	West end of US 12 overlap
		107	East Missoula
		109	MT 200 east – Bonner, Great Falls	East end of MT 200 overlap
		113	Turah
		120	Clinton
		126	Rock Creek Road
Granite		130	Beavertail Road
		138	Bearmouth Area
	Drummond	153	MT 1 – Drummond, Phillipsburg	Eastbound exit and westbound entrance
	Drummond	154	To MT 1 – Drummond, Phillipsburg	Westbound exit and eastbound entrance
Powell		162	Jens
		166	Gold Creek
		170	Phosphate
		174	US 12 east – Garrison, Helena	East end of US 12 overlap; eastbound exit and westbound entrance
		175	To US 12 east – Garrison, Helena	No westbound entrance
		179	Beck Hill Road
	Deer Lodge	184	I-90 BL east – Deer Lodge
		187	I-90 BL west – Deer Lodge	No westbound entrance
		195	Racetrack
Deer Lodge		197	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		201	Warm Springs
		208	MT 1 – Anaconda, Opportunity
Silver Bow		211	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		216	Ramsay
		219	I-15 south – Dillon, Idaho Falls
	West end of I-15 overlap
		122	Rocker
		124	I-115 (I-15 Bus. north, I-90 Bus. east) – Butte City Center	Eastbound exit and westbound entrance
	Butte	126	Montana Street
	Butte	127	I-15 BL west / I-90 BL (Harrison Avenue)	Signed as exits 127A (south) and 127B (north) eastbound
	East end of I-15 overlap
		227	I-15 north – Helena
		228	Continental Drive
		233	Homestake
Jefferson		241	Pipestone
	Whitehall	249	MT 55 to MT 69 – Whitehall
		256	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		267	Milligan Canyon Road
Broadwater		274	US 287 – Helena, Ennis
Gallatin		278	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		283	Logan, Trident
		288	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
	Belgrade	298	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		305	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
	Bozeman	306	I-90 BL east / S-205 (North 7th Avenue) to US 191 south
	Bozeman	309	I-90 BL south / US 191 (Main Street)	West end of US 191 overlap
		313	Bear Canyon Road
		316	Trail Creek Road
		319	Jackson Creek Road
		324	Ranch Access
Park		330	I-90 BL east – Livingston
	Livingston	333	US 89 south – Yellowstone National Park, Livingston City Center	West end of US 89 overlap
		337	I-90 BL west – Livingston
		340	US 89 north – White Sulphur Springs	East end of US 89 overlap
		343	Mission Creek Road
		350	East End Access
		352	Ranch Access
Sweet Grass		354	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		362	De Hart
		367	I-90 BL east / US 191 north – Big Timber, Harlowton	East end of US 191 overlap
		370	I-90 BL west to US 191 north – Big Timber, Harlowton
		377	Greycliff
		384	Bridger Creek Road
Stillwater		392	Reed Point
		396	Ranch Access
		400	Springtime Road
		408	MT 78 – Columbus
		426	Park City
Yellowstone		433	I-90 BL east – West Laurel	Eastbound exit and westbound entrance
	Laurel	434	US 212 west / US 310 – Laurel, Red Lodge	West end of US 212 overlap
		437	I-90 BL west – East Laurel
	Billings	443	Zoo Drive
		446	I-90 BL east – West Billings
		447	South Billings Boulevard – Billings City Center
		450	MT 3 (27th Street) – Billings City Center
		452	I-90 BL west / US 87 north – Roundup, Lockwood	West end of US 87 overlap
		455	Johnson Lane
		456	I-94 – Bismarck
		462	Pryor Creek Road
		469	Arrow Creek Road
Big Horn		478	Fly Creek Road
		484	Frontage Road – Toluca
	Hardin	495	I-90 BL east / MT 47 – Hardin City Center
		497	I-90 BL west (Third Street) – Hardin
		503	Dunmore
		509	Crow Agency (Baaxuwuaashe)
		510	US 212 east – Little Bighorn Battlefield, Broadus	East end of US 212 overlap
		514	Garryowen
		530	Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).
		544	Wyola
		549	Aberdeen