Wissahickon Stone Quarry LLc wsqllc
schist wall and complete three tier garden located in the Wyndmoor area of Pennsylvania WISSAHICKON STONE QUARRY LLC GLENSIDE PA 19038 215 887 3330 HISTORY Wissahickon Schist commonly called Chestnut Hill Stone is a very old historical stone which dates to the Ordovician period some 550 million years ago It is so old that it contains no