[Rumil]

Made me think of the gravelly-stony scree slope that Bilbo, Gandalf and the Dwarves slid down in their escape from the Misty Mountains. Though too far North for a Moria slag heap.

Up the Valleys they've landscaped a lot of the old slag-heaps and they look reasonably tidy now after only 50 or so years, so I guess after a few thousand years of weathering in Middle Earth it would be difficut to tell what was mine-spoil and what was natural.