108 Copper Miiunfi in Mhinasota — Thdl. 



bat to fchisday all off )rts have l)een in vain. High, steep walls of 

 Cambrian rocks have been, found exhibiting a color which 

 might be hke that mentioned by LeSuenr, but no copper lies 

 behind them. 



Passing northward we reach the St. Croix river valley, at 

 Taylors Falls. Copper has been known to exist since before 1865^ 

 for in that year the legislature appropriated a sum of monej^ 

 $2,000. for exploring the mineral lands of the St. Croix: 

 valley. Professor James Hall came to the state and found at Tay- 

 lors Palls a very distinct vein bearing copper. 



This vein and several others in the neighborhood of Taylor.*? 

 Falls, one or two of them on the Wisconsin side of the St Croix 

 liave been worked from time to time but never with paying re- 

 sults. The most noticeable working for copper at Tayloi*s Falls 

 was done by Mr. X. V. I). Taylor on the his^hest part of the 

 nielaphyr near the Lutheran church . A shaft from 40 to 50 feet 

 deep was sunk. Some little qnantity of leaf copper was found. 

 Nearer the river a mining company, ''the Taylors' Falls mining 

 co:npaay*' did some work in two or three places along what were 

 designated veins. I believe silver as well as copper was found, the 

 latter iaeven smaller qnantities than on the hill. 



Further up the St. Croix, near the mouth of the Kettle river,, 

 considerable exploring has been done especiall}^ by Mr. D. A. Cane- 

 da\ , recently of Taylors Falls. This work has been chiefly in ash 

 bed and aragydaloidal diabasic rocks. The product thus far has 

 been a low grade ore which is unprofitable under the present con- 

 dition of the market and the situation of the ore in an unsettled 

 country and away from easy and rapid transportation. 



Touching the locality at and below Chegwatona we read as 

 follows: — ''native copper occurs in these rocks on Snake river, 

 both in the conglomerates and in some of the bands of altered 

 amygdaloid, and in such quantity near the surface as to promise 

 success to mining enterprise."'* What eifort has thus far been 

 made has proved unprofitable although no little interest was re- 

 cently aroused and no little w^ork was done in exploring and test- 

 ing the rocks. This was in 3880-1882. 



Passing to the Lake Superior area of these Cupriferous rocks, 

 there were found, according to Hon. H. M. Rice, in or about the 



*Irnng R. D. Monograph V, U. S. Geol. Survey, The Copper Bearing 

 Hocks of Lake Superior, p 243. 



