AMP: 89 Location: US 89 and Grover Rd, Grover Reassurance shild after WYO 237 as we pass out of Grover AMP: 87 Location: US 89 and Kennington-Burton Rd, Afton US 89 enters Afton, the biggest city in the Star Valley AMP: 86 Location: US 89 and Kennington-Burton Rd, Afton Junction CRs 160 and 136 AMP: … Continue reading U.S. Route 89, WYO 237 to WYO 238