A sheer rock face of competition, it's growing upward at speeds we can't even measure because the biggest retailers don't share their ebook sales numbers. (porteranderson.com)
We climbed what was definitely the most realistic - looking rock face in any game. (theguardian.com)
The water falls 35 metres down a sheer rock face into a series of lower pools beneath the surrounding forest canopy. (travelfish.org)