Entrance grave 47m north west of Old Rock, Porth Hellick Down, St Mary's

The National Heritage List for England records Entrance grave 47m north west of Old Rock, Porth Hellick Down, St Mary's as a scheduled monument. The saved point comes from the centre supplied by the official record. Listing does not by itself mean that the public may enter the place.

Entrance grave, dating to the Neolithic period, typically c. 3700–2500 BCE. These tombs are significant as some of the earliest communal burial monuments in the British Isles, reflecting early social organisation and ritual practices.