Precision Scheduled Railroading at work.
Union Pacific's Portland, OR to North Platte, NE manifest put 28 cars on the ground at approximately 1 AM MST on 12/5/2021, just outside Hammett, Idaho at the base of Medbury Hill. No hazmat was involved, just one empty tank car, plenty of loaded steel flatcars, a couple covered hoppers, centerbeams, and at least one coil car. Nobody was injured.