Although I'm not much of a fan of the road, I do have to note that no one's mentioned the Milwaukee Road in this steam speed queen contest. Their 4-4-4s ran Chicago to the Twin Cities on a 90 MPH schedule, and their 4-6-4s ran Chicago to Milwaukee in an hour flat. "Unconfirmed" speeds of 125 MPH were a daily occurance for well over a decade.....