If snow plow drivers who work Alaska's Thompson Pass worried about driving in white-out conditions, the road would never get cleared. But thanks to an ultra-precise GPS system, these snow plow crews are able to get the work done.
A Mack Snow Plow Built for the Frozen North [Photos]
Down in the lower 48, we've had a pretty tough winter, but way up in Alaska its a fact of life. Equipment Editor Jim Park shares more photos from Valdez, Alaska, where he got a front row demonstration of a Mack Granite snowplow specially built for Alaska's tough snowy season.