AMP: 15
Location: Pryor Rd and Blue Creek Rd, Yellowstone Cty
No reassurance shield as 418 begins. It’s a pretty long trek down to Pryor from here.
AMP: 0
Location: Pryor Rd and Pryor Gap Rd, Pryor, Stillwater Cty
15 miles later, 418 ends here at the junction with County Road 91. 91 heads towards St. Xavier. Follow Pryor Gap Rd to the state park and Edgar.