38 GEOLOGICAL SURVEY OF THE TERRITORIES. 



APPENDIX TO CHAPTER II. 



By H. T. West. 



Different strata passed through in boring for an artesian well by H. T. 

 West, on section 12, township 5 north, of range QQ west, being in the 

 county of Weld, in the Territory of Colorado — bore, 3 inches in diameter. 



Feet. In. 



Surface-soil 22 



White sand-rock 7 



Blue sbale 7 



Black shale 2 6 



Coal 6 



Brown rock 8 



Hard brown rock (sandstone) 2 



Brown rock 13 



Hard brown rock 1 



Soft brown rock 8 



Blue shale : 5 



Hard white sand-rock 2 



Bine shale 7 



Hard blue shale 2 



Blue shale 8 



Hard blue shale 3 



Blue shale 4 



Hard blue shale 3 



Blue shale 10 



Rock 1 



Blue shale 5 



Hard blue rock 1 



Blue shale 3 



Rock .• 3 



Rock (probably of a different character) 5 



Hard rock 3 



Blue shale ■ 3 



White rock 3 



Gray rock 4 



Blue shale 2 



Hardrock 3 



Gray slate 4 



Blue slate 2 



Gray slate 3 



Rock 2 



Blueshale .". 3 



Hard slate ; (I am doubtful may have been coal) 4 



White sand-rock 5 



Hard white sand-rock 3 



Blue shale 4 



Hard blue shale 2 



Hard shale 3 



Hard blue rock 5 



Blueshale 1 



192 



These memoranda were taken from the book kept by the man who 

 did the boring. He saved samples of each stratum, but I think that 

 they have been destroyed. 



Higley's coal-mine is in section 20, township 7 north, of range 

 66 west. Mr. La Grange prospected for a company, of which I was the 

 secretary, in sections 17 and 22, in the same township and range. He 

 made a rough diagram of the results of his drilling (boring), which I 

 • have sent him, with the request that he perfect it and return to me, and 

 when he does so I will dispatch it to you. 



