DCHP-1 Online
track-breaker North 
n. a man on snowshoes who runs ahead of a dog team making a passable track in new or deep snow.
See also: forerunner
- 1897 In soft snow it is necessary for the guide or track-breaker to wear very large shoes, that he may not sink too deeply, but those who follow in his trail get along with the more ordinary size.
- 1897 In soft snow it is necessary for the guide or track-breaker to wear very large shoes, that he may not sink too deeply, but those who follow in his trail get along with the more ordinary size.