MONOGRAPH XLI PL. XVIII 



PJLEISTOCENE ^lAP 



OF EATtT OF THE 



GIRARD AND ERIE ,PENNSYLVANIA,QUADRANGLES 



By PrarikJ^evere tt 



Scale 



I =1- 



Contour uitPi-val 100 ft. 

 1900 



LakeWhitQesev 



TSToix-morainic drift 



LakeWairen 



Beaclies 



Lu\e of glanial draina ge 

 discharging westwara 



LaLfeeMaiimee Recent alluvium 



—-^ — rLi— Roads 



