Grimspound settlement, and the ‘Miner’s Path,’ Dartmoor.
Grimspound is thought to be a Bronze Age settlement, but the place-name is only a few hundred years old so it’s not known what kind of settlement it originally was, defensive, or agricultural, a cattle herding settlement. The ‘Miner’s Path’, is a bit more of a recent development, it dates from the 13th or 14th century.
I was last there on a clear day, but I really would love to return on a misty day. It’s quite easy to find, from the road just follow the ‘Miner’s Path’ until you reach one of the entrances.