AMP: 12 Location: S-366 and S-417, Pondera Cty No reassurance shield after S-417, but we’ll immediately enter Pondera County. AMP: 0 Location: S-366 and I-15, Pondera Cty A few miles later, we’ll approach Interstate 15. AMP: 0 Location: S-366 and I-15, Pondera Cty Follow I-15 north to Shelby and I-15 south to Great Falls. AMP: 0 Location: S-366 and … Continue reading Montana Secondary Highway 366, S-417 to I-15