An eastbound rolls past Chem Spur, east of Barbara's Gulch. The train will stop at Leyden long enough to assist a UP train to tie their train down. The crew on the UP train was not informed that they should tie the train down and, by the time they learned this, they had already died. Once a crew has died, they are not allowed to do anything other than sit on the train and ensure it doesn't roll. This includes tying it down. The BNSF crew lent a hand though and the UP crew was able to leave on a van.
If you are reading this and are new to trains, the term die refers to a crew that has worked for 12 consecutive hours. Once they have worked 12 hours, they are "dead" and cannot do anything else.