Your steeds for the Grand Canyon trip are of mixed lineage. They're both F40FH's, similar to what was on Metra in Chicago. 237 is ex-Amtrak, while the second loco, 4128, is ex-NJ Transit.
Your mystery loco marked BM&LP is a GE E60CF from the Black Mesa & Lake Powell Railroad. BM&LP was an isolated line strung at 50kAC. Ran coal between a dedicated mine and a power station. The line was closed in 2019 with the power station.
The E60CF is interesting. Big, beastly thing showing when the American loading gauge is used for a freight electric. Comparably recent, as well. They were built between 1973 & 1976.