Reference | {Deposit:: QUARRYING CONDITIONS FAVORABLE,BUT DRAINAGE MAY BE}{Deposit:: A PROBLEM.AT TIME OF PUBL.NO QUARRY,BUT QUARRY SHOWN}{Deposit:: ON MAP}{Deposit:: ALLEN,R.C.MINERAL RESOURCES OF MICH.MICH.GEOL.AND}{Deposit:: BIOL.SURV.PUBL.21,1916,PP 240} |