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,^{[citation needed]} 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).^{[citation needed]}

Quick Facts Route information, Length ...

Montana Highway 42
MT 42 highlighted in red
Route information
Maintained by MDT
Length	2.892 mi[1] (4.654 km)
Major junctions
South end	MT 24
North end	US 2 in Glasgow
Location
Country	United States
State	Montana
Counties	Valley
Highway system
Montana Highway System Interstate US State Secondary
← MT 41 → MT 43

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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.^{[citation needed]}

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

The entire route is in Valley County.

More information Location, mi ...

Location	mi[1]	km	Destinations	Notes
​	0.000	0.000	MT 24	Southern terminus
Glasgow	2.892	4.654	US 2	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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