Thanks for the link, Dave. It amazes me to think that the original Big Boys ran on low-grade Wyoming coal. That's what was available, of course, but I'm surprised it would work. Nowadays the 4014 burns oil, and there's a modern locomotive in the consist, I suppose to keep the train moving in case it breaks down. Can't have our busy tracks blocked.

Or who knows, perhaps in the wee hours, when no railfans are parked by the tracks and no little kids are waving at the engineer, the 4014 takes a break and lets the diesel push it. Here's a question for an engineer: is it better to give the engine a rest or to keep it in operation and keep the temperature stable?

Recently the DH came across the British term anorak, meaning [apparently] blue-collar craftsman. The DH thought about wearing his anorak to see the engine, but it was too hot - over 90.
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Donuel, I'm glad you liked the post about the Wasatch Mountains.