From Alan JAmes – 27 March 2020
That’s a striking hook, for sure, but the fields are NE of Rockvale towards Brighouse, I think feature aka ‘head of the rocks’ would have been the larger rock-shelf to the NE.
As I say, it’s hard to judge how it would have looked 1000 years ago, it does have a parrot-beak shape, but the pool it encloses does look a natural site for a fish trap.