AMP: 0 Location: 1st Ave and Main St, Lewistown No reassurance shield as 87/200 turns. AMP: 0 Location: 1st Ave N and 6th Ave N, Lewistown A few blocks later, we’ll approach US-191 north. AMP: 0 Location: 1st Ave N and 6th Ave N, Lewiston Turn right for US-191 north towards Malta. US-191 Business ends here. Stay straight … Continue reading U.S. Route 191 Business, US-87/US-87 Bus/MT-200/MT-200 Bus/S-238 to US-87/US-191/MT-200