Montana Secondary Highway 427, US-87/MT-3/MT-200 to US-89

AMP: 12

Location: S-427 and US-87, Judith Basin Cty

Reassurance shield as S-427 begins.

AMP: 0

Location: S-427 and US-89, Cascade Cty

12 miles later, we’ll approach US-89.

AMP: 0

Location: S-427 and US-89, Cascade Cty

Turn left for US-89 south and right for US-89 north.

 S to S-259, N to US-87/MT-3/MT-200

 S to S-551, N to US-89

 N to US-89, S to S-551

 W to US-89, E to S-551