AMP: 93 Location: 6th St and Higgins Ave, Missoula Reassurance shield after the business loop splits. AMP: 94 Location: 6th St and Arthur Ave, Missoula In a block, turn left to stay on US 12 AMP: 94 Location: 6th St and Arthur St, Missoula Turn left for US 12 east. AMP: 94 Location: Arthur St … Continue reading U.S. Route 12, US-12 Bus to I-90 Bus/US-12 Bus