Do you know why roads run where they do? I needed to make the drive from Michigan where the roads often get routed around the hills, valleys and lakes formed by the glaciers, to Wyoming where there were many challenges for people trying to run roads and the railroad across the continent. Wyoming is a relatively high altitude place, so as you cross Nebraska, there is a rather continuous grade up to Cheyenne at 6000 ft. Then another climb west of Cheyenne of 2000 to 2500 feet to the summit of the railroad and US30 / I 80.
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