On the eastern fringe of Bodmin Moor close to the natural rock formation known as the Cheesewring lies a large granite slab with a mathematical figure chiselled on its surface. Close by is another rock on which is carved, “D. Gumb, 1735”. This is all that remains of a rock shelter inhabited by Daniel Gumb, an eighteenth-century recluse. The rock shelter was demolished during quarrying operations and the inscribed stones which now lie a few yards south of the Cheesewring Quarry are about 100 yards south-west of their original site.