[Ulzgoroth]

Originally Posted by RogerBW

Yes, though I think it could be justified as a separate skill or at least familiarity. If you're trained in map and compass you don't necessarily know about the shady sides of trees or whatever, fair enough -10, but that latter thing is knowledge you can learn separately from how to use a map.

Survival trivia like where the moss grows is supporting information. It's not the basis of a skill any more than knowing what the pointer on a compass means is...