AMP: 1 Location: S-239 and S-400, Judith Basin Cty Reassurance shield after the S-400 junction. AMP: 11 Location: S-239 and S-541, Judith Basin Cty Several miles later, we’ll approach Secondary 541 on the north edge of Utica. AMP: 11 Location: S-239 and S-541, Judith Basin Cty After turning left into Utica, Secondary 239 serves as an access to … Continue reading Montana Secondary Highway 239, S-400 to S-541