 Complete the following phrase:  U.S. Highway 87 Bypass US 87 Byp. exists on the eastern and northern edge of Great Falls. The route begins at 10th Avenue South US 87US 89MT 3MT 200 west of Malmstrom Air Force Base along 57th Street South and runs south to north. Just south of the intersection with 2nd Avenue North the name of the road changes to 57th Street North. At 10th Avenue North, the street name changes to River Drive North, then curves towards the west as it crosses a bridge over a former Milwaukee Road railroad line. The route heads straight west until after the intersection of North Park Trail where it curves to the northwest. After a railroad crossing and the entrance to Giant Springs State Park and the 