AMP: 185 Location: US-16 and WYO 433, Big Horn Cty Reassurance shield after the intersection. We’re about to cross the Big Horn River AMP: 184 Location: US-16 and S Sherman Ave, Manderson Junction Wyoming 31 coming up immediately after crossing the river. WYO 31 spurs into Manderson which is right off the road, and then … Continue reading Wyoming Highway 789, WYO 433 to WYO 31