AMP: 46 Location: WYO 487 and WYO 77, Carbon Cty Reassurance shield after the WYO 77 junction as we’re about to cross into Natrona County AMP: 46 Location: WYO 487 and WYO 77, Carbon Cty 27 miles to junction WYO 220, which is one of the most major state highways in the system, 45 miles … Continue reading Wyoming Highway 487, WYO 77 to WYO 220