Weetwood Bridge portable

A substantial block of fine-grained sandstone with a proportionately large and deep regularly shaped cup, 0.15 m diameter and 0.15 m deep. Conical in shape with a clear, almost circular rim in the flat top of the rock. The interior of the cup looks almost machine made with concentric rings of elongated chip or cut marks parallel to the top surface of the boulder. The conical shape becomes exagge…