Today's Train of Thought is from railpictures.net contributor John Ireland, who caught Apache Railway C424 #98 heading south through the desert with two Alco C420s after picking up its' train from the BNSF interchange in Holbrook, AZ in September.
The Apache is fairly unique in that their motive power is exclusively Alco or MLW (Montreal Locomotive Works). Alco manufactured their last locomotive in 1969, making spare parts or replacements increasingly difficult to find over the years. However, there remain a handful of railways scattered across the country who continue to use nothing but Alco (or similarly-designed MLW) locomotives to this day. Now that's brand loyalty.