Montana Highway 42

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Montana Highway 42

MT 42 highlighted in red
Route information
Maintained by MDT
Length2.892 mi[1] (4.654 km)
Major junctions
South end MT 24
North end US 2 in Glasgow
CountryUnited States
Highway system
MT 41 MT 43

Montana Highway 42 (MT 42) is a short, 2.892-mile-long (4.654 km) state highway in the U.S. state of Montana, connecting MT 24 with downtown Glasgow. Formerly Highway 24W, Highway 42 (its route number a reversal of "24") runs northwest from where Highway 24 crosses the BNSF Railway's Northern Transcon, staying parallel to the tracks until it turns right in Glasgow's downtown and dives under the railroad to meet with and terminates at U.S. Route 2 (US 2).

Route description

MT 42 begins at a T-intersection with MT 24 southwest of Glasgow. MT 24 makes up the northern and southeastern leg of the intersection, while MT 42 heads to the northwest. For most of its length, the route is situated between the Milk River and the Northern Transcon. MT 42 and the railroad enter Glasgow from the southeast and both curve to the north-northwest; in town, the highway follows First Avenue South. Near the city's Amtrak station, MT 42 turns to the north onto Sixth Street and crosses beneath the railroad tracks. Shortly thereafter, it ends at its intersection with US 2.


The highway was renumbered from 24W to 42 in 1994.[2]

Major intersections

The entire route is in Valley County.

0.0000.000 MT 24Southern terminus
Glasgow2.8924.654 US 2Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Montana Department of Transportation (2011). "Montana Road Log" (PDF). p. 170. Retrieved August 3, 2012.
  2. ^ Montana Official Highway Map 1994–1995 (PDF) (Map). Cartography by H. M. Gousha. Montana Department of Transportation. 1994. Retrieved September 17, 2021.