AMP: 45
Location: US-287 and S-408, Teton Cty
Reassurance shield after the S-408 junction.
AMP: 40
Location: US-287 and MT-21, Lewis & Clark Cty
After we enter Lewis & Clark County, we’ll approach Montana 21.
AMP: 40
Location: US-287 and MT-21, Lewis & Clark Cty
Follow 21 east to Great Falls. Stay on 287 for Helena. MT-21 is an off-system state highway, maintained by the state but not on any particular route system.
AMP: 40
Location: US-287 and MT-21, Lewis & Clark Cty
Turn left for MT-21 east. Stay straight for 287 into Augusta.
