A Mack Snow Plow Built for the Frozen North [Photos]

A Mack Snow Plow Built for the Frozen North [Photos]

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Down in the lower 48, we've had a pretty tough winter, but way up in Alaska cold temperatures and heavy snow are a fact of life. Equipment Editor Jim Park shares more photos from Valdez, Alaska, where he got a front row seat to a documentary shoot of a Mack Granite snowplow specially built for Alaska's tough winters. Photos: Jim Park