Three Brothers of Grugith
The Three Brothers of Grugith (Cornish: ) is a prehistoric site, a dolmen of the Neolithic Age, near St Keverne in Cornwall, England. It is a scheduled monument. Description
The dolmen is situated near the summit of a hill overlooking Goonhilly Downs. Two orthostats support a capstone; there are depressions on the capstone which may be cup marks, or may be naturally formed. The chamber enclosed by the stones measures about , height about . William Copeland Borlase excavated the chamber in 1872: he discovered a pit about  deep, and one flint flake. References

Dolmens in Cornwall
Scheduled monuments in Cornwall
Lizard Peninsula