Three Brothers of Grugith

The Three Brothers of Grugith (Cornish: An Tri Broder a Grugwydh) 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 4 by, height about 1 m. William Copeland Borlase excavated the chamber in 1872: he discovered a pit about 1 m deep, and one flint flake.