From Flagstaff to Gallup you follow the railway line, from small town to small town, from trading post to trading post (and yes, they still trade there the way they have done for more than a century). As you roll across the plains there's a column of white in the sky, leading you, the modern Moses, across the desert to the promised land.
But it's not the hand of God. Not this time. It's Man that's leading you on, with a trail of carbon in the sky.
It's a power station. Out there, in the middle of nowhere.
Miles past, in the middle of the Petrified Forest National Park, you can still see it, two huge concrete stacks drawing a line on the sunset horizon.
Petrified Forest National Park, Arizona