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        After spotting this Z train coming around the hill at Calada and having just left Nipton, I decided to head for Ivanpah to meet them. I actually made it to this spot close to 15 minutes ahead of the UP 4125 with a wb ZNPLA. Gave me time to search for a nice spot. I settled on this bridge over a dry wash. I soon realized that they were going to meet someone at the next siding since we didn't have that high green on the signal behind me. So once they passed I made my way to Brant, to wait for the impending meet.  By this time the UP 4125 was creeping along and getting ahead of it was no problem. What I wasn't expecting was the speed at which the downhill train would be running...