THE CRYSTAL FALLS IRON-BEARING DISTRICT 

 OF MICHIGAN. 



PART II. THE EASTERI^f PART OF THE DISTRICT, 

 INCLUDING THE FELCH MOUNTAIN RANGE. 



By Henry Lloyd Smyth. 



With a Chapteu on the Sturgeon Eiver Tongue, bv William Shirley Bayley. 



CHAPTER I. 

 GEOGRAPHICAL LIMITS AND PHYSIOGRAPHY. 



INTRODUCTIOlSr. 



The territory to be described, in this and the four following- chapters is 

 situated in the Upper Peninsula of Michigan, between the Marquette and 

 Menominee iron ranges, and is all embraced within T. 42 N., Rs. 28-30 W., 

 and Ts. 42-47 N., Rs. 30-31 W. The area of about 300 square miles 

 included within these townships had for the most part been covered hastily 

 by previous reconnaissances of the Lake Superior Division of the United 

 States Geological Survey, the results of which were placed at my disposal. 

 Our task was to go over with especial care those portions in which outcrops 

 had been found by our predecessors, or which seemed likely to contain the 

 iron-bearing formations. At the same time much of the rest was examined 

 more hurriedly. 



The tract surveyed in detail comprises a continuous belt about 30 

 miles in length, and of width varying from 2 to 5 miles, lying wholly 

 within the drainage basin of the Michigarame River and its principal upper 

 tributary, the Fence River, and extending southward from the northern end 

 of the Republic tongue, where it was connected with rocks of well- 

 determined Marquette types, as far as the south line of T. 43 N., R. 31 W. 

 From this line we passed southeast (leaving a gap of 5 miles) across the low 



