Sinodun Chapter Rose Croix No 548 is the 4th of nine Chapters in the Berkshire District. The consecration ceremony took place on the 7th November 1960 at The Guildhall Abingdon. The name Sinodun is derived from the old Celtic name ‘Seno-Dunum’ which means old fort. A local landmark known as the Wittenham Clumps is part of the Sinodun Hills which has alternate names including the Berkshire Bubs or Mother Dunch’s Buttocks. Among the legends surrounding the Clumps is the location of a Money Pit, concealing a vast treasure guarded by a black raven.