AMP: 10 Location: SR-23 and SR-30, Cache Cty Reassurance shield after SR-30. AMP: 17 Location: 400 W and Main St, Newton As we enter Newton we’ll approach SR-142. AMP: 17 Location: 400 W and Main St, Newton Turn right for 23 north towards Smithfield and Preston, Idaho. Follow 142 west to Clarkston. AMP: 18 Location: 400 W and Main … Continue reading Utah State Route 23, SR-30 to SR-142