576 



MINING INDUSTET. 



Stamp Mills in Gilpin County. — There are about. 70 crushing mills, 

 large and small, in Grilpin County, or in the gold-producing region, chiefly 

 situated in the neighborhood of Nevada, Central City, and Black Hawk. 

 The number of their stamps exceeds 1,300. Nearly all of these were 

 at work in the summer of 1869, although some of them are old and 

 out of repair, and a few others were idle, for other reasons, at the time 

 referred to. In order to obtain some desirable statistical information con- 

 cerning the operations of these mills, the writer addressed a circular to 

 their proprietors, or managers, making a number of inquiries on the subject. 

 The foregoing statement presents in tabular form much of the information thus 

 obtained, concerning those mills from which replies were received. The 

 information is here given just as it was received from each mill manager, 

 except that, in stating the capacity of the mill, "cords" of ore have been con- 

 verted into tons at the average rate of 7^ tons per cord ; in stating the yield of 

 the rock, "ounces" of crude bullion, per cord of ore, have been converted into 

 dollars and cents per ton ; and the cost of working is given per ton instead of 

 per cord, the calculation being made on the basis above indicated. There are 

 a few apparent inconsistencies in some of the statements which the writer 

 prefers to leave uncorrected than to attempt unauthorized changes. 



The following are mills not included in the foregoing statement : 



Name. 



Remine's . . . . 

 "Walker's . . . . 

 Eagle . . . . . 



Bobtail 



John Sensenderfer's 



Union 



Briggs . . . . . 

 Bates and Baxter . 

 Gunnell . . . . 

 La Crosse Company 

 Kansas-Colorado 



Stoner 



Beverly . . . . 

 Potter and Hawley 



Ayres 



Morse 



Kimber's - . . . 

 Pease and Mann 



Stamps. 



5° 



12 



i8 



12 

 12 



IS 



Name. 



Dickinson's . . . . 

 Consolidated Gregory 

 Fitzpatrick . . . . 

 Arrighi's . . . . 



Empire 



Sterling .- . . . . 

 Rocky Mountain . . 

 Mather . . . ^ . 



Ruh's 



Boston . . . . . 

 Philadelphia . . . 

 New Bedford . . . 

 GoldHUl . . . . 



Vernon 



North Star . . . . 

 Waterman's . . . . 

 GunneU Central . . 



Stamps. 



20 



so 

 lo 



3 



12 



23 

 20 

 12 



3 

 12 



ZS 

 12 



i6 

 14 



22 

 IS 

 24 



