MONOGRAPH XXXVI PL. VI 





Sketch, sliowing location of sections 

 General Map. 





Als 



^fi|r 





J^ PART OF CRYSTAL FALLS DISTRICT 



TERTIC.VL SCALE, 1 INCH- 1320 FEET. 

 ;S 1000 FEET, 

 here exposures have been observed. 



N 



UPPER HURON IAN 



INTRUSrV^E 



-JA"iI£ 



PLEISTOCENE 



UNDI\'IDED 



:T(andcS:Negaiinee Undivided 



brmation 



