AMP: 226 Location: I-90 and I-15, Butte Reassurance shield after the I-15 split. I-90 won’t concur with another interstate until Wisconsin. AMP:228 Location: I-90 and Continental Dr, Silver Bow Cty Reassurance shield after Continental Dr as we head out of Butte and prepare to ascend Homestake Pass. AMP: 241 Location: I-90 and Pipestone Rd, Jefferson … Continue reading Interstate 90, I-15 to MT-55/S-399