DISCLAIMER: I’m not really sure if this is Montana 88. The route is in MDT’s logs as N-88 (N-88 runs from I-90 to I-90 along this route and mainline 12), but N- numbers don’t always align with the posted route number. Most/all of the newer posted state highways to the P- and N- systems do … Continue reading Montana Highway 88, I-90 to US-12