In skiing, crud is a snow condition that occurs when powder becomes somewhat tracked up, though not boilerplated or fully packed down (or moguled up). The general instance of crud is characterised by loose, chunky snow floating on top of a semi-packed base. While crud is in no way comparable to untracked powder, it can often be the next best thing when no such snow (untracked or slightly ski-cut) is available.

Crud generally lacks the smoothness of full-blown pow and can be a bit uneven, but is generally much softer than packed stuff. Skiers not used to skiing in crud may find it a bit hard to get used to, and it can in fact be condusive to injuries. Good examples of crud can be found in Pacific Coast ski resorts such as Whistler/Blackcomb or Eaglecrest Ski Area.