Slope and Aspect

Slope is a measure of change in surface value over distance. User has to give a value from 0 to 100 (%).
Aspect is the direction to which a mountain slope faces. Taking a bearing on the fall-line of a slope is a useful method of identifying which side of a hill you are on.

  • 1. Stand facing downhill - the way a ball would roll if set away down the hill.
  • 2. Point your compass in the direction of the fall-line - i.e. with direction of travel indicator pointing downhill. This is the aspect direction.