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?
Forum Discussion
Tom/Barb wrote:old guy wrote:
remember you are crossing the Rockies, so yes there are some high passes
They aren't that high. I-90 is the lowest route you can take. Homestake Pass is a mountain pass in the Rocky Mountains of Montana in the United States. It sits on the Continental Divide on the border between Jefferson County and Silver Bow County, six miles south-southeast of Butte in Beaverhead-Deerlodge National Forest at an elevation of 6,329 feet (1,929 m).
Remember to take the short cut from Spearfish S.D. to Billings, it save a half day driving.
