Translations:Adventist Youth Honors Answer Book/Nature/Animal Tracking (General Conference)/3/en
From Pathfinder Wiki
Casting Tracks in Snow
Snow is difficult to cast because it is not nearly as firm as mud. Furthermore, plaster generates heat when it is mixed, and this can easily melt the snow surrounding the track. However, tracks are a lot easier to find in the snow, and casting can be done if you are careful.