Along side a D6 Cat. The Cat with it's wide swamp pads kept loosing traction every time they pushed a big pile. It was greasy and frozen under the grease so the piles aren't too big. The day before they were pushing piles so big you couldn't see the two crawlers while standing a couple hundred yards away even but no pics. The story was still the same then too as the D6 kept loosing traction. They decided to quit after these photos as they were taking too much dirt. The day before things worked much better as it was more frozen. Have some film will upload later.