Horseshoe Bend – Arizona – USA (von .Bala)
At last they were brought to a halt. The ridge took a sharper bend northward and was gashed by a deeper ravine. On the further side it reared up again, many fathoms at a single leap: a great grey cliff loomed before them, cut sheer down as if by a knife stroke. They could go no further forwards, and must turn now either west or east. But west would lead them only into more labour and delay, back towards the heart of the hills; east would take them to the outer precipice.
– The Lord of the Rings, Volume Two: The Two Towers, Book Four: The Ring Goes East, Chapter 1 The Taming of Smeagol