Cody, I'm not sure but that would seem the most likely. From what Mr. Ramsey said, they probably just finished up doing some work and were out testing things. Pretty standard for them, of late anyway. Run down to Greeley, check things out, wye the train and head back up to Cheyenne. Glad I heard it.
RDanneman, I have been told for many years now that the typical operating speed from Denver to Cheyenne is about 65MPH or so. I think too many people were getting speeding tickets trying to keep up when the speed was higher. No joke.