In article b7Emb.21615$mZ5.81261@attbi_s54, Newps
wrote:

CAUTION Rwy forms part of Dempster hwy (mile 244)

Wow, a rare instance of governmental common sense. Imagine, actually
trusting a pilot to make sure there are not trucks on the highway before
landing!

Any road in Montana that is not Federal can be used as a runway. Just
look both ways.

In Alaska there are signs that state "Airplanes Have Right-of-Way On
Road".