Forum Discussion

Winterwolf227's avatar
Winterwolf227
Explorer
Apr 02, 2015

Any high mountain passes through Montana/Idaho on I-90

Headed to South Dakota from Portland, OR along I-90, curious if there is any high mountain passes like on I-70 through Colorado?
Roads and Routes
agesilaus's avatar
agesilaus
Explorer III
Apr 03, 2015
You can get lots of info on just about any US highway by typing the highway designation and the state in google. Using I-90 Idaho finds a Wiki page:

Wiki


And a Idaho highway dept page:

ITD

Along with many other hits

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