308 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
breccia beyond. There is usually one main fissure in the sheeted zone, and to this 
the ore is practically confined. It is in places as much as 5 inches in width. Some 
portions have a very open, vuggy structure, the calaverite or sylvanite occurring 
in the quartz and fluorite lining the vugs. Other portions are more solidly filled and 
contain abundant galena and tetrahedrite. Where rhodochrosite forms the princi¬ 
pal filling of the fissure the ore is of little value. 
Some small shoots of ore have been stoped from the New and Keystone lodes 
in the Mint mine, and a very little ore has been found in the Pointer lode northeast 
of the phonolite dike. 
UNDERGROUND WATER. 
These mines are at present dry, and appear never to have been seriously hampered 
by water. Information on this point, however, is not available. 
ANACONDA MINE. 
INTRODUCTION. 
The Anaconda mine is situated in the town of Anaconda, with workings extend¬ 
ing northward through Gold Hill. The property comprises about 20 claims, cover¬ 
ing 150 acres. It was originally owned by the Anaconda Mining and Milling Com¬ 
pany, which was afterwards reorganized as the Anaconda Gold Mining Company, 
capitalized at $5,000,000. In 1900, on a failure of the stockholders to respond to 
assessment, the company was reorganized as the Anaconda Mining Company, with 
a capital stock of $2,000,000. 
The mine was one of the first producers in the district, and from 1892 to 1897 
was actively worked and produced large quantities of ore, mainly from the open 
cut on Gold Hill and from stopes near the surface. In 1892 this mine was the 
largest shipper in the district and had a stamp mill of 15 tons daily capacity. For 
the past few years the property has been worked by lessees. 
PRODUCTION. 
The Anaconda mine has produced ore to the gross value of about $1,500,000, 
over $1,000,000 of this having been mined prior to the year 1900. None of the 
companies ever paid a dividend. 
UNDERGROUND DEVELOPMENT. 
The mine is at present worked through an adit (fig. 30) having its portal at 
Anaconda and connecting with very extensive drifts and crosscuts under Gold Hill. 
The adit level extends northward about 4,200 feet to the north end of the Kittie M. 
claim and connects with the workings of the Half Moon and Kittie M. shafts on the 
north side of Gold Hill. Branches of the same level extend eastward to the Colo¬ 
rado Boss ground of the Cripple Creek Consolidated Mining Company. The old 
workings from which came the ore shipped from 1892 to 1897 are all above this 
adit and for the most part not accessible. Below the adit level, or level 4, are six 
other levels. Of these, only level 10, 400 feet below the adit, is extensive. These 
lower levels are reached by a winze 1,150 feet from the adit portal. 
