You only went a little way. Barely even left the path. How on earth did you get lost already? Something cold and wet is dripping down the back of your neck. And there's nothing of value to be found.
Much of this part of the heath has been picked over, but you are skilled at identifying the sorts of rocks people value. You come away with a sizeable chunk of glim, a few odd pieces of jade, and the satisfaction of not having got lost in the fog.