When I was a kid, this time of the year my Dad would cut black spruce (or whatever was in the path of his Jonsered chain-saw) and I would haul it on our Bombardier TNT-440. This snowmobile, in the '80s, was more equipped for racing (wide, short track, big motor for the time). Get this thing stuck and hit the throttle, it went straight down, trying to drill a hole through the snow and the earth.
Thanks for the blast from the past, Men... and good job of recycling fallen trees into energy. No need for Dubya's oil.
Cheers,
M