Thinking especially of the Alderley Edge books (The Weirdstone of Brisingamen and The Moon of Gomrath), that landscape, the real Alderley Edge, is in modern-day Cheshire. And almost all of the natural landmarks Garner describes in Colin and Susan’s adventures were — and are — really there. The Old Quarry, the Wizard’s Well, Goldenstone, Radnor Mere, Redesmere, Macclesfield, and on and on. A visitor to north central England could, without too much difficulty, find these spots and retrace the characters’ steps. And some have actually done so!
How fantastic would that be? Can you imagine exploring the many mines and caves that dot the place, on the lookout for the svart alfar? Taking care not to get stuck in the Earldelving (which really scared me as a kid). It's no wonder Alderley inspired Garner to write stories like Weirdstone. The very landscape is so evocative and so little changed.