I've been listening to an audiobook of Hound of the Baskervilles this week, and Stapleton's description of the moor to Watson set me on an almost immediate search for pictures:
"It is a wonderful place, the moor," said he, looking round over the undulating downs, long green rollers, with crests of jagged granite foaming up into fantastic surges. "You never tire of the moor. You cannot think the wonderful secrets which it contains. It is so vast, and so barren, and so mysterious."-- Sir Arthur Conan Doyle, The Hound of the Baskervilles
I think I agree with him.