AMP: 145 Location: US-12 and MT-3, Golden Valley Cty Reassurance shield as 3 joins 12. The two routes will concur to Harlowton. AMP: 130 Location: US-12 and 3rd St, Ryegate A few miles later, we’ll enter Ryegate, Montana’s smallest county seat. AMP: 129 Location: US-12 and 2nd St, Ryegate In Ryegate, we’ll approach S-238 and S-300 AMP: 129 Location: … Continue reading Montana Highway 3, US-12 to S-238/S-300