Houston, we have a problem! Surprisingly, this train actually made it all the way to Kamloops, BC (some 400 miles) before running into any operational issues! Nevertheless, smoking away, CN SD60 5461 and (out of sight) CN C44-9W 2569 climb through Bickerdike with CN train M311.
The EMD SD (special duty) series are a strong and reliable kind of locomotive which still serve America's rails today. They have proved themselves reliable by clocking in several million miles of freight service over several decades.