I was searching for badger setts deep in our wooded hills when I chanced upon the crag. As tall and wide as a little country church, the limestone overhang glinted in the spring sunlight. Over the centuries some of the cliff had clearly collapsed, and moss-covered boulders lay scattered under the scar, like the ruins of an abandoned village. I must have taken a dozen photographs, but none of them came close to capturing my astonishment as I stepped out of the woods and encountered the rock face rising above me.