Reference | {Deposit:: COMMODITY USEFUL AS AGRICULTURAL LIMESTONE, CONCRETE,AGGREG-}{Deposit:: ATE, ROAD METAL, CEMENT, BLAST FURNACE, R.R. BALLAST}{Deposit:: PGS MINERAL RESOURCE REPORT, M50,PART ONE,LIMESTONES AND DOL}{Deposit:: MITES OF PA,1964,PG.11,MAP 4} |