For the surveyors in the colder regions; this might be a useful attachment to the Survey Chariot:
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Looks like a very expensive way to get stuck way back in the sticks. Those wheel tracks in the snow looked mighty deep. Those new trucks get high centered very easily with all of the skid plates and they are difficult to dig out. I could see having to wait until the snow melted...then be stranded behind blow downs, boulders, stumps, and heavy brush.
Ever fallen through the snow into a creek? When I was a small kid, we were hiking and I fell through the snow about 10' down to an ice cold, swift flowing creek. There was a nice tunnel down there that you couldn't see from the surface that would easily swallow a truck.