ECIICATIOS DEf ARTMEH-r 

 JOHM M CLAHKE 

 STATE OEOIX)GI3T 



STATE ML'SEnVI 



BULLETIN 138 



Sb St Sb! Sc 



LEGEND 



Black River Group 



r , 



CrrfitaUiDC Schlsw 

 and IgueoiiH Rocks 



SECTIONS ALONG LINES INDICATED ON THE GEOLOGIC SHEET 



