A quick walk up the Ochils that overlook Stirling. Well worth the time spent to get there and rewards the mild effort with great views from the Forth bridges (soon to be a trio) in the east to Ben Lomond in the west. The Wallace Monument and Stirling Castle were built upon “crag and tails” for strategic reasons.
These are hills made of harder rock than the surrounding area. Glaciers scoured anything in their path as the moved along the Forth valley. This left oddly shaped hills with one steep side, the leading edge (crag) of how the ice travelled and one much more gently sloping side. This low side or tail is from scoured rock and earth deposits as the glacier passes by.