AMP: 0 Location: 1st Ave S and Main St, Lewistown Reassurance shield as S-238 begins. AMP: 4 Location: E Fork Rd and Fish Hatchery Rd, Fergus Cty A couple miles later, as we head out of Lewistown, we’ll come to an unmarked junction with Secondary 466, a quick spur to nowhere. Turn right for 466 west.  S … Continue reading Montana Secondary Highway 238, US-87/US-87 Bus/US-191 Bus/MT-200/MT-200 Bus to S-466