AMP: 0 Location: Frontage Rd and Front St, Granite Cty 271 begins as we head out of Drummond. It follows the frontage road for a bit and isn’t signed here. AMP: 1 Location: Frontage Rd and S-271, Granite Cty Turn left for 271 north towards Helmville AMP: 1 Location: S-271 and Frontage Rd, Granite Cty As we cross … Continue reading Montana Secondary Highway 271, I-90/I-90 Bus to MT-141