AMP: 89 Location: US-87 and S-448, Hill Cty Reassurance shield after 448 as we head out of Box Elder. AMP: 79 Location: US-87 and Park St, Big Sandy Ten miles later, we’ll enter Big Sandy, home of Senator Jon Tester. AMP: 78 Location: US-87 and Michigan Ave, Big Sandy On the south side of Big Sandy, we’ll approach … Continue reading U.S. Route 87, S-448 to S-236/S-432