AMP: 169
Location: Main St and 8th Ave, Roundup
Reassurance shield as 12 joins 87. 87 is the primary posted route here, but the mileposts are consistent with US 12.
AMP: 168
Location: Main St and 1st Ave, Roundup
A few blocks later, 12/87 will turn to head west.
AMP: 168
Location: Main St and 1st Ave, Roundup
Turn right for 12 west/87 south.
AMP: 168
Location: 1st Ave and Main St, Roundup
After all that buildup, no reassurance shield after the turn.
AMP: 167
Location: US 12 and US 87, Musselshell Cty
About a mile later, the two routes will split.
AMP: 167
Location: US 12 and US 87, Musselshell Cty
Follow 12 west to Harlowton and 87 south to Billings.
AMP: 167
Location: US 12 and US 87, Musselshell Cty
Turn right for 12 west. Stay straight for 87 south.
