One of these is at the Heidrick Agriculture Museum and History Center / 1962 Hays Lane / Woodland, California 95776
Images from http://www.personal.psu.edu/jtr16/trips.htm
Watch the video if this in deep snow, and staying on top like it can levitate or something
http://scootermcrad.blogspot.com/2009/10/crazy-friday-snow-vehicle.html This is incredible!