of the snow mobile! Thank heavens for them because they keep my paths open. Otherwise the snow is so deep it would be impassable!
http://lh4.ggpht.com/_eTzuNZZ7ZF0/S1...s800/trai2.jpg
which allows me to see things like this:
http://lh3.ggpht.com/_eTzuNZZ7ZF0/S1...00/sparkle.jpg