MINES — FAIRPLAY DISTRICT. 



•7(»3 



Fig. 



The annexed section shows the relative position of the differ- 

 ent portions of the veui: 

 '■ 1. Crevice con taiumg lead ore. 



2. Key-rock with crevices on each side. 



3. Opening containmg lead ore with loose masses of rock and 

 clay. 



4. Chimney going down to 

 6. Second opening. 

 6. G-alena limestone. 

 The vein has not been worked over half the time since its 



„,,^.,,. ^f commencement, as frequent stoppages were necessary for the 

 li!^;fS" P'^ose of puttmg in now pumps and maoliinery. Work was 

 t discontinued here in February, 1876, but it is expected that act- 

 ive operations will soon be resumed. 



Mr. Black estimated that he had taken out about one mflUou 

 pounds of lead ore, at an expense of $40,000. 



Williams & Co. This mining property is situated about 

 three-quarters of a mile northeast of Black's mine, and was op- 

 erated by the proprietors, Messrs. Thomas and Jeremiali Wil- 

 Hams, and Mr. O'Connor. The water in this ground is not 

 >3 nearly so abundant as in the preceding. It is easUy removed 

 with a common hft-pump, worked with a ten-horse power en- 

 gine; the amount seldom exceeds 250 gallons per mmute. Mining has been confiued 

 to the upper half of the Galena hmestone. The lower clay beds of the Cmcinnati group 

 are also found here, but there is not so great a thiclmess of them as at Black's mine. 

 The pump shaft commences at the top of the Galena limestone, and is sunk to a depth 

 of one hundred and six feet, at which point the 

 top of the second opening is found, after passing 

 through the first opening, which is situated at a 

 depth of forty-seven feet from the surface, and is 

 probably identical with the first opening at 

 Black's mine, which it much resembles in its gen- 

 eral appearance. The first opening here consists 

 of a series of large caves or enlargements of the 

 crevice, with chimneys going down to the second 

 opening. 



TTie ore was found in masses mixed with clay and 

 large pieces of stone which had apparently fallen 

 from the roof or cap. The Lead ore from its great- 

 er specific gravity usually occupies the lower part 

 or floor of the opening. The course of the range 

 is very nearly east and west, but bears a Kttle 

 north on its western end. The length of drifts in 

 the top opening amounts to about nine hundred 

 feet. It is about worked out at the western end, 

 but stiU continues good at the east. Several 

 masses of lead ore were found in this opening 

 weighing from fourteen to fifteen thousand pounds. 

 A singular formation of ore was found in the top 

 opening, as illustrated in the annexed diagram. 



1. Opening and crevice fiUod with loose masses of lead ore and rook, mixed with loose 

 fine day and sediment. 2. Tins is a bench about a foot in width on each side of the opeu- 



FiG. 16. 





Sbotion op Opening in the Williams 

 Mine. 



