AMP: 249
Location: I-90 and MT-55, Jefferson Cty
Reassurance shield after the 55 interchange.
AMP: 255
Location: I-90 and S-359, Jefferson Cty
A few miles later, we’ll approach Secondary 359.
AMP: 256
Location: I-90 and S-359, Jefferson Cty
Exit for Secondary 359, which heads south to Cardwell and north to Boulder via MT-69. Montana 2 also crosses here and is concurrent with S-359, but it’s poorly signed.
W to MT-69/S-359, E to S-359
