AMP: 9 Location: SR-142 and SR-23, Cache Cty No reassurance shield after SR-142, which loops out to Clarkston. AMP: 5 Location: Center St and 200 E, Clarkston Welcome to Clarkston! AMP: 5 Location: Main St and 200 E, Clarkston Turn left to stay on 142 as we enter Clarkston. AMP: 4 Location: 200 E and Main St, Clarkston Reassurance … Continue reading Utah State Route 142, SR-23 to SR-23