Thin Colonial Wall and Flagging Stone Pennsylvania Colonial Wall Stone and Flagging Stone Thin Colonial Wall Stone This Product is palletized snapped pieces of Pennsylvania flagstone approx. 3000 lb. of 1" to 3" stones of mixed various size with flat smooth face Great for walls, paths, facing and a variety of other projects. This product is actually snapped bluestone and flagstone direct from our quarry. available in the many colors grey, grey-blue, grey -green and red. Special orders taken.