List of state highways in Montana

Montana Highway System
Montana Highway 3 marker
Montana Highway 59 marker
Montana Highway 200 marker
Map of main highways within Montana
System information
Maintained by MDT
Formed1942[1]
Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Highway n (US n)
StateMontana Highway n (MT n)
SecondarySecondary Highway nnn (S-nnnn)
System links

The state highways in Montana are the state highways owned and maintained by the Montana Department of Transportation (MDT) in the US state of Montana.

Montana's state highways are classified as either primary or secondary.[1] Several of Montana's state highways (both primary and secondary), or sections thereof, have also been designated as part of the National Highway System.[1]

  1. ^ a b c Multimodal Planning Bureau, Rail, Transit & Planning Division (March 2017). "A Guide to Functional Classification, Highway Systems and Other Route Designations in Montana" (PDF). Montana Department of Transportation. pp. 5–6. Retrieved April 8, 2019.