Wiktionary
untracked
a. 1 Not tracked. 2 (context of a tracked vehicle, such as a tank or earthmover English) Having lost a track. 3 (context of a ski slope English) Covered by freshly fallen, undisturbed snow.
WordNet
Usage examples of "untracked".
The gold of the departing sun crept up the snow, up tops of the rocks and the tips of the evergreens, and vanished altogether as all the world turned to blue shadows, snowy rocks, snow-blanketed evergreens and the untracked expanse of the road that had received a layer of honest snow.