AMP: 38 Location: US-287 and Frost Alley, Lewis & Clark Cty After the turn, we’ll leave Augusta pretty quickly, and here’s a reassurance shield. AMP: 38 Location: US-287 and Frost Alley, Lewis & Clark Cty 18 miles to MT-200, 38 miles to I-15. AMP: 33 Location: US-287 and Dry Creek Rd, Lewis & Clark Cty Reassurance shield a … Continue reading U.S. Route 287, S-435 to MT-200