AMP: 0 Location: I-90 at the Idaho Line, Mineral Cty Reassurance shield as I-90 enters Montana. AMP: 5 Location: I-90 and Randolph Creek Rd, Mineral Cty Reassurance shield a few miles later .We’re headed downhill at a pretty good clip for several miles, with some of the best twisties on any interstate in the country. AMP: 11 Location: … Continue reading Interstate 90, ID State Line to MT-135