AMP: 20 Location: US-87 and S-244, Musselshell Cty Reassurance shield after the 244 junction AMP: 1 Location: US 87 and 4th St W, Roundup Several miles later, we’ll enter the town of Roundup AMP: 0 Location: US 87 and 12th Ave W, Roundup As we turn to enter Roundup’s grid, we’re advised to be in … Continue reading U.S. Route 87, S-244 to US-12