736 GEOLOGY AND TOPOGRAPHY OF THE LEAD REGION. 



worked, it is safe to say they have produced not less than eight million pounds of lead 

 ore, and twice as much zinc ores. During the winter of 1874-5, eight men were em- 

 ployed in Mr. Ross' mines and produced ore to the value of $1,600. During the winter 

 of 1S75-6, four men were employed, producing ore to the value of $1,000. Work will 

 probably be resumed this winter. 



On the lands of the Mineral Point Mining Co. several parties are working on tribute. 

 The amount this ground is producing could not be ascertained. 



Goldsworthy & Bro. These diggings are situated on lots 279-280 of Harrison's sur- 

 vey, about a quarter of a mile east of the preceding and on the N. W. qr. of Sec. 6, T. 

 4, R. 3 E. This is known as the Barber range, and has been worked in the winter 

 season during the last six years. 



The ore is Sniithsonite, much mixed with pyrites; it is found in the upper pipe-clay 

 opening, in a flat sheet from 8 to 30 feet wide and from 18 to 24 inches thick, being 

 most productive on crossing crevices. 



Four men are employed here producing about 20 tons per year. 



T. Lutey & Co. This party is working a short distance east of the preceding, on 

 land owned by M. M. Cothren. They have been working on a continuation of the Bar- 

 ber range for about two months (October, November, 1876) and have now a very good 

 prospect. 



Most of the lead ore from the Barber range is obtained from the glass-rock opening, 

 but it has never been worked for zinc ore. ' 



Slithers & Co. Situated on the southeast part of Harrison's survey. This is a near- 

 ly east and west range, known as the " Walla- walla," and has been worked by the 

 present party since 1865. The range is about 120 feet wide and has been worked in the 

 glass-rock opening to a length of about 1,000 feet, and at a depth of 73 feet below the 

 surface. From three to six men are employed, working in the winter season. The 

 mine produces lead ore and both kinds of zinc ore. The average annual product of 

 lead ore is about 44,000 pounds. The products from January to April, 1876, of all kinds 

 of ore were valued at $900. 



J. Arthur & Co. Situated on the S. W. qr. Sec. 6, T. 4, R. 3 E. This is an east and 

 west range, discovered about two years since, and worked continuously to the present. 

 The ores are Sniithsonite and lead ore, found in a flat sheet, from six inches to one foot 

 thick, in the glass-rock opening, at a depth of 60 feet from the surface. The range is 

 about 100 feet wide; its length is not yet known. It is situated on land owned by Mr. 

 J. J. Ross. The ground is comparatively dry. 



Hoare Bros. Situated about 50 yards east of the preceding, and on the same range, 

 on land owned by Mr. J. Hoare. This party has been working here about two years, 

 producing lead ore and Sniithsonite from the glass-rock opening. The diggings are now 

 very good. 



Nichols & Holmes. Situated on N. E. qr. Sec. 7, T. 4, R. 3 E., a short distance 

 east of the old zinc works. There are some irregular flat sheets of zinc ore in the glass- 

 rock opening, about 20 feet deep. They have been worked during the last two years 

 and have produced considerable zinc ore. 



Harris & Lang. These diggings are situated about half a mile south of the pre- 

 ceding. This is an east and west range situated in the glass-rock opening about 25 

 feet deep. It has been worked about a year, producing considerable zinc ore. 



In the vicinity of the Mineral Point Town Hall, on the N. W. qr. of Sec. 5, T. 4, R. 3 

 E., are the following diggings: 



Prideaiix & Henry. This is a north and south range, about 200 yards south of the 

 Town Hall, which has been worked by the present party since 1866. The ores are lead 

 und zinc, found in flat and pitching sheets from 8 to 10 inches thick, in the tipper pipe- 



