Some months ago, I was in California. In my meanderings, I found a couple of “Historic Route 6” signs at the very north end of Sierra Highway.
And the lonely north end of Sierra Highway. The power poles follow the old route, and the trains still run alongside. The end of the road, past the marker, seems to be used by a construction company for staging. Just beyond the pile of brown stuff is a pile of black stuff. And beyond that is dirt, running in a straight line until it hits CA 14 just outside of Mojave.