| Secondary State Routes up to 300 |
Decommissioned routes shown in italics.
Description :
Runs from Fairview to Jct MT 13
History / Notes :
Future
Description :
Runs from Sidney to North Dakota border
History / Notes :
Future
Description :
Runs from Florence to Stevensville
History / Notes :
Future
Description :
Runs from Dodson to Jct US 191
History / Notes :
Future
Description :
Runs from Bozeman to Three Forks
History / Notes :
Old US 10
Description :
Runs from Big Fork to Halfmoon
History / Notes :
Future
Description :
Runs from Whitewater to Jct US 191
History / Notes :
Old MT 208 ran from Somers to Big Fork - now MT 82
Description :
Ran from Big Fork to Ferndale
History / Notes :
Originally ended at Clearwater
replaced by MT 83
Description :
Runs from East Missoula to Schwartz Creek
History / Notes :
Future
Description :
Runs from Ronan to Moiese
History / Notes :
Future
Description :
Runs from Moiese to Charlo
History / Notes :
Future
Description :
Runs from Alberta border at Port of Del Bonita to Cut Bank
History / Notes :
Extended north, replacing MT 483
Description :
Runs from Santa Rita to Sweetgrass
History / Notes :
Future
Description :
Runs from Santa Rita to Oilmont
History / Notes :
Future
Description :
Ran from Jct I-15 to Jct US 89 via Valier
History / Notes :
Replaced by MT 44
Description :
Runs from Alberta border at Port of Whitlash to Jct MT 343
History / Notes :
Future
Description :
Runs from xxx to Conrad
History / Notes :
Future
Description :
Runs from Pendroy to Conrad
History / Notes :
Future
Description :
Runs from Jct MT 219 to Choteau
History / Notes :
Future
Description :
Runs from Dutton to Choteau
History / Notes :
Future
Description :
Runs from Jct M-89 in Dillon to I-15 south of Dillon
History / Notes :
Future
Description :
Runs from Chester to Fort Benton
History / Notes :
Future
Description :
Runs from xx to Joplin
History / Notes :
Future
Description :
Runs from Benton Lake to Great Falls
History / Notes :
Future
Description :
Runs from Great Falls to Eden
History / Notes :
Future
Description :
Runs from Great Falls to Stockett
History / Notes :
Future
Description :
Runs from Great Falls to Highwood
History / Notes :
Future
Description :
Runs from Fort Benton to Windham
History / Notes :
Future
Description :
Runs from Iron to Helena
History / Notes :
Old Route Rudyard to xx
Description :
Runs from Alberta border at Port of Wild Horse to Havre
History / Notes :
Future
Description :
Runs from Saskatchewan border at Port of Willow Creek to Havre
History / Notes :
Future
Description :
Runs from Havre to Shambo Springs
History / Notes :
Future
Description :
Runs from Jct MT 230 near Arrow Creek to Brooks
History / Notes :
Future
Description :
Runs from Big Sandy to Hilger
History / Notes :
Future
Description :
Runs from Lewistown to Heath
History / Notes :
Future
Description :
Runs from Hobson to Utica
History / Notes :
Future
Description :
Runs from Chinook to Cleveland
History / Notes :
Future
Description :
Runs from Port of Turner at the Saskatchewan border to Harlem
History / Notes :
Future
Description :
Ran from Port of Morgan at the Saskatchewan border to Malta
History / Notes :
Replaced by US 191
Description :
Runs from xx to Saco
History / Notes :
Future
Description :
Runs from Winnett to Int US 87 near Flatwillow Creek
History / Notes :
Future
Description :
Runs from East of Brusett to Jordan
History / Notes :
Future
Description :
Runs from Hinsdale to Glasgow
History / Notes :
Future
Description :
Runs from Webster to Mill Iron
History / Notes :
Old 247 ran from Port of Ophiem to Glasgow (196x-196x)
Description :
Runs from Ophiem to Scobey
History / Notes :
Old route of MT 5
Description :
Runs from Jct MT 287 to Jct US 287 near Cameron
History / Notes :
Old MT 249 ran from Nashua to Fort Peck from 196x-197x, now MT 117
Description :
Runs from Volt to Wolf Point
History / Notes :
Future
Description :
Runs from Flaxville to Jct US 2 near Poplar
History / Notes :
Future
Description :
Runs from Horse Creek to Circle
History / Notes :
Future
Description :
Runs from Brockway to Terry
History / Notes :
Future
Description :
Runs from Jct MT 13 near Vida via Richey to Glendive
History / Notes :
Future
Description :
Runs from xx to Rudyard
History / Notes :
Future
Description :
Runs from Port of Raymond to Plentywood
History / Notes :
Future
Description :
Runs from Superior to Trout Creek
History / Notes :
Future
Description :
Runs from North Dakota border to Reserve
History / Notes :
Future
Description :
Runs from Jct US 89 at Newlan Creek to White Sulfur Springs
History / Notes :
Future
Description :
Runs from Sidney to Wibaux
History / Notes :
Old MT 7
Description :
Runs from xx to Superior
History / Notes :
Future
Description :
Runs from Huson to Missoula
History / Notes :
Future
Description :
Runs from xx to Missoula
History / Notes :
Future
Description :
Runs from Stevensville to Hamilton
History / Notes :
Future
Description :
Runs from Helmville to Drummond
History / Notes :
Future
Description :
Runs from Deer Lodge to Goldcreek
History / Notes :
Old MT 272 connected Helmville to Avon, now MT 141
Description :
Runs from Galen to xx
History / Notes :
Future
Description :
Runs from Jct MT 1 near Mill Creek to Jct MT 43 near Fishtrap
History / Notes :
Future
Description :
Runs thru Deer Lodge
History / Notes :
Future
Description :
Runs from xx to Butte
History / Notes :
Future
Description :
Runs from Jct MT 323 near Ridgeway to Hammond
History / Notes :
Future
Description :
Runs from Wisdom to Dillon
History / Notes :
Future
Description :
Runs from Jct MT 200 near Flecher Pass to Helena
History / Notes :
Future
Description :
Runs from Trout Creek Canyon to Helena
History / Notes :
Future
Description :
Runs from Boulder to Cardwell
History / Notes :
Future
Description :
Runs from Montana City to Jack Mountain
History / Notes :
Future
Description :
Runs from Harrison to Pony
History / Notes :
Future
Description :
Runs from Canyon Ferry SP to Townsend
History / Notes :
Future
Description :
Runs from Toston to Radersburg
History / Notes :
Future
Description :
Runs from Trident to Three Forks
History / Notes :
Future
Description :
Runs from Manhattan to Anceney
History / Notes :
Future
Description :
Ran from Norris to Bozeman Hot Springs
History / Notes :
Replaced by MT 84
Description :
Runs from Manhattan to xx
History / Notes :
Future
Description :
Ran from Bozeman Hot Springs to Belgrade
History / Notes :
Replaced by MT 85
Description :
Ran from Wilsail to Bozeman
History / Notes :
Old MT 187; replaced by MT 86
Description :
Runs from Jct US 12 north of Martinsdale to Horse Butte
History / Notes :
Future
Description :
Runs from Livingston to Mission
History / Notes :
Future
Description :
Runs from Twodot to Lebo Lake
History / Notes :
Future
Description :
Runs from Judith Gap to Careless Creek
History / Notes :
Future
Description :
Runs from Big Timber to Boulder Ranger Station
History / Notes :
Future
Description :
Runs from Ryegate to Big Coolie Creek
History / Notes :
Future
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