MINES CALAMINE DISTRICT. 739 



McDermott & Co. Mining has been carried on here by Mr. McDennott for about 

 26 years, on the McShane & Gray range. The ore is found in flat and pitching sheet, in 

 crevices and crevice openings in the Galena limestone above the flat openings. The dig- 

 gings now produce lead and zinc ore. The average annual product is about 30,000 Bos. 

 Four men are employed here. 



Schlosser & Co. This party has been working four or five years on the east end of 

 the same range as the preceding. The ground is dry, and the lead ore is found about 

 40 feet below the surface. The annual product is about 10,000 S>s. 



Win. and Thos. Thrasher. This party has worked in this vicinity about fifteen years, 

 on a parallel range situated about a quarter of a mile southeast of Schlosser & Co. The 

 product is chiefly lead ore. 



Lost Grove Diggings. 



These diggings are situated on land owned by Mr. J. J. Ross, on Sec. 33, T. 5, 

 R. 2 E. Mining is confined here to the winter season. The ground is dry, and the ore 

 is found in flat sheet in the glass-rock opening. The following parties are mining here : 



Rigger & Arthur. This party has been working two years on an east and west 

 range, producing lead ore and Smithsonite. The range varies from 25 to 50 feet in 

 width, and lies from 30 to 40 feet below the surface. The product is valued at $1,200 

 per annum. 



Clayton & Co. Situated about a quarter of a mile northwest of the preceding, have 

 been working during the last twelve years on the Jim Brown range. This is an east 

 and west range, from 50 to 60 feet wide, and lying about 70 feet below the surface, pro- 

 ducing exclusively lead ore. The product has been about 20,000 pounds per annum. 



Garden & Son. Situated about one-fourth of a mile south of the preceding. They 

 have been working about two years and have produced about $400 worth of ore. 



Robert Brown & Co. Situated about half a mile east of Clayton & Co., and on 

 the same range. The diggings here are from 25 to 50 feet deep. They have been 

 working about three years and have produced about 30,000 pounds per annum. 



Furfer & Co. They have been working on a range near Brown & Co., during the 

 last eight years, producing lead and zinc ore. 



CALAMINE DISTRICT. 



There are several tracts of land situated fin Sees. 18 and 19, T. 3, R. 3 E., which were 

 formerly quite productive; but little work is now done on them. They are situated on 

 the west side of the Pecatonica river, on the ridge which separates the Wood and Bon- 

 ner branches. The ridge slopes abruptly on all sides but one toward the various 

 streams which nearly inclose it. 



On the summit of the ridge there is a thickness of about one hundred feet of Galena 

 limestone, underlaid by fifty feet of the Blue and Buff limestones, below which is the 

 sandstone. All these formations may be distinctly seen in passing from the summit of 

 the ridge to the valley of the Pecatonica. 



During the winter of 1876-7 some mining was done here by Mr. Charles Mappes, of 

 Belmont, on an east and west range lying from 30 to 40 feet below the surface. Four 

 men were employed, working on a flat sheet of blende and galenite. The amount pro- 

 duced could not be ascertained. Some Smithsonite is also produced in this vicinity. 



Yellowstone Diggings. 



Pierce & Son. Some work has been done here during the winter seasons of the last 

 three years, in a range a quarter of a mile north of the Newkirk range, situated on the 

 S. W. qr. of Sec. 14, T. 4, R. 4 E. The lead ore is found in a vertical sheet in a crevice 

 opening about fourteen feet below the surface. In the winter of 1874-5 the product 



