AMP: 0 Location: S-405 and US-2, Roosevelt Cty No reassurance shield as S-405 begins. AMP: 6 Location: S-405 and Rd 17-1006, Roosevelt Cty Six miles later, keep left to stay on S-405. AMP: 14 Location: S-405 and Rd 17-2045, Roosevelt Cty Eight miles later, we’ll need to turn left again to stay on S-405, which will now shoot … Continue reading Montana Secondary Highway 405, US-2 to MT-16