Nebstone

The Nebstone is a notable rock on the northern edge of Ilkley Moor in West Yorkshire, England. It resembles the lid of a grand piano and stands a few hundred metres west of the Keighley Road, near the Swastika Stone[1]. Like many rocks on Ilkley Moor, it bears cup and ring marks—circular depressions carved into the stone—though this prominent boulder has relatively few such marks[1]. The purpose of these ancient carvings remains debated[1].