List of Montana Numbered Highways - List of Former Highways

List of Former Highways

• U.S. Route 10
• U.S. Route 10A
• U.S. Route 10N
• U.S. Route 10S
• U.S. Route 87E
• U.S. Route 87W
• U.S. Route 91
• U.S. Route 312
• U.S. Route 789, was proposed only.

• Montana Highway 4 - Thompson Falls to Idaho state line
• Montana Highway 6 - Townsend to Forsyth
• Montana Highway 8 - Crow Agency to Olive
• Montana Highway 9 - Lolo to Idaho border at Lolo Pass
• Montana Highway 11 - Alberta border at Sweetgrass to Vaughn, became part of U.S. Route 91 in 1934.
• Montana Highway 14 - Fairview at the North Dakota border to Glendive
• Montana Highway 15 - Chester to Stanford
• Montana Highway 18 - Glendive to Grassrange
• Montana Highway 20 - North Dakota border at Sidney to Idaho border near Heron
• Montana Highway 22 - Saskatchewan border at Port of Ophiem to Wyoming border at Alzada
• Montana Highway 26 - Manicke to Trout Creek
• Montana Highway 27 - Big Sandy to Winifred
• Montana Highway 29 - Great Falls to Port of Wildhorse
• Montana Highway 30 - South Dakota border near Midland to Jct U.S. Route 12 northwest of Mizpah
• Montana Highway 31 - Bigfork to Drummond
• Montana Highway 32 - Rockvale to Yellowstone National Park at Silver Gate
• Montana Highway 33 - Choteau to Wolf Creek
• Montana Highway 34 - Twin Bridges to Ennis
• Montana Highway 36 - Dillon to Gibbons Pass
• Montana Highway 45 - Forsyth to Lame Deer via Lee
• Montana Highway 50 - Jct U.S. Route 287 to Idaho border at Raynolds Pass
• Montana Highway 110 - Opportunity to Drummond
• Montana Highway 187 - Wilsall to West Yellowstone
• Montana Highway 191 - Jct U.S. Route 10S at Sappington to Jct Montana Highway 187 at Grayling
• Montana Highway 789 - Alberta border at Sweetgrass, south along Interstate 15 / U.S. Route 91 to Great Falls, then southeast along U.S. Route 87 to Billings, then southwest along U.S. Route 212 to Laurel, then to Wyoming border south of Warren along U.S. Route 310
• Montana Secondary Highway 216 - Jct Interstate 15 to Jct U.S. Route 89 via Valier (Replaced by Montana Highway 44.)
• Montana Secondary Highway 230 - Windham to Fort Benton (Replaced by Montana Highway 80.)
• Montana Secondary Highway 235 - Brooks to Jct Montana Secondary Highway 230 near Arrow Creek (Replaced by Montana Highway 81.)
• Montana Secondary Highway 242 - Port of Morgan at the Saskatchewan border to Malta (Replaced by U.S. Route 191)
• Montana Secondary Highway 281 - Cardwell to Boulder (Replaced by Montana Highway 69.)
• Montana Secondary Highway 289 - Norris to Bozeman Hot Springs (Replaced by Montana Highway 84.)
• Montana Secondary Highway 291 - Bozeman Hot Springs to Belgrade (Replaced by Montana Highway 85.)
• Montana Secondary Highway 293 - Wilsall to Bozeman (Old Montana Highway 187 ; replaced by Montana Highway 86.)
• Montana Secondary Highway 307 - Columbus to Red Lodge (Now Montana Highway 78.)
• Montana Secondary Highway 319 - Jct U.S. Route 212 South of Broadus to Wyoming border south of Biddle (Replaced by Montana Highway 59 in 196x)
• Montana Secondary Highway 376 - Fort Belknap Agency to Jct U.S. Route 191 near Landusky (Replaced by Montana Highway 66)
• Montana Secondary Highway 397 - Belfry to Wyoming border (Replaced by Montana Highway 72)
• Montana Secondary Highway 461 - Jct Montana Highway 200 near Paradise to St. Regis (Replaced by Montana Highway 135)
• Montana Secondary Highway 483 - Port of Del Bonita to Santa Rita (Replaced by an extension of Montana Secondary Highway 213)
• Montana Secondary Highway 498 - In Great Falls (Replaced by bypass U.S. Route 87)
• Montana Secondary Highway 499 - Follows the north end of Hebgen Lake from Jct Montana Highway 287 to Jct U.S. Route 191 (Replaced by U.S. Route 287 in 1964)
• Montana Secondary Highway 506 - Yaak to Libby (Replaced by Montana Secondary Highway 567)