AMP: 104 Location: I-90 and Orange St, Missoula Reassurance shield after the 93 business interchange. AMP: 103 Location: I-90 and Reserve St, Missoula Exit in 2 miles for US 93 south. This will also be the northern terminus of 93 business and the western terminus of I-90 business. US 93 will join the interstate for a few miles. … Continue reading Montana Highway 200, US-93 Bus to I-90 Bus/US-93