That would be my guess, but I see lots of other types of vehicles that are normally yellow in other colors. But this specific kind I don't recall ever seeing in

That would be my guess, but I see lots of other types of vehicles that are normally yellow in other colors. But this specific kind I don't recall ever seeing in another color. Even here [0] most are yellow despite having a different manufacturer. Maybe the difference is enough to differentiate them though. [0] https://en.wikipedia.org/wiki/Haul_truck#Ultra_class https://en.wikipedia.org/wiki/Haul_truck#Ultra_class