Interesting stuff... I see just about every loco mentioned here on the CPR calgary-edmonton mainline occasionally. Ex youpees, BNSF, N/S, KCS and even a ferromex a few weeks ago. There was also an ex-UP mixed up in the spiral tunnel wreck back in feb.
Things have really changed here for railfan sightings. I can remember dad always being on the lookout for interesting stuff and pulling the car over, digging out the pentax or whatever he currently had and getting the pic.