AMP: 0 Location: US-191 and US-87, Fergus Cty No reassurance shield as 87/191/200 split from the mainline. AMP: 1 Location: 6th Ave and Valach Rd, Lewistown About a mile around the truck bypass, we’ll enter Lewistown. AMP: 2 Location: 6th Ave and Joyland Rd, Lewistown A few blocks later, we’ll approach S-237. AMP: 2 Location: 6th Ave and Joyland … Continue reading U.S. Route 191, US-87 Bus/US-191 Bus/MT-200 Bus to S-237