AMP: 10 Location: S-263 and S-474, Missoula Cty No reassurance after the 474 junction. AMP: 14 Location: Beckwith St and S-263, Frenchtown, Missoula Cty As we enter Frenchtown, we’ll need to turn right to head off old US 10 and up to I-90. AMP: 14 Location: S-263 and I-90, Frenchtown, Missoula Cty After the turn, … Continue reading Montana Secondary Highway 263, S-474 to I-90