Douglas Island news., 1912-08-28
The Mining Industry in 1911

Bulletin 52o-A, issued by the United States Geological Survey, says in re- gard to the Southeastern Alaska min ing industry in 1911:
 The auriferous lode mines of south eastern Alaska are estimathd to have produced gold to value of S3,990,786 ! in 1911 as compared with an output of S3S39626 in 1910. In this region eight gold mines and four copper mines were operated in 1911 and nine gold mines and three copper mines in 1910, Al though there was a decrease in the number of productive mines, much dead work was done on several large mining enterprises in the Juneau gold belt, and number of small properties in the Ketchikan district were system atically prospected. The Chichagof and Golden Gate mines, in the Sitka district, each supplied ore to 10 stamp mills. 1t is reported that these two properties are to be consolidated. The success of these two properties has stimulated the development of d nun
 Der of prospects in the adjacent regions. A customs mill was built at Skagway in 1911 for the purpose of testing ores from the prospects of the vicinity.
 There can be DO question that the gold output of Southeastern Alaska will be much increased within very few years. In copper mining the ad- vances was less marked, but several properties promise to become produc tive in 1912, and should copper con- tinue to advance, considerable in- crease of the copper output from this field is to be expected.
 The Treadwell group of mines, on Douglas Island, continued in 1911 to be the source of most of the gold output of Southeastern Alaska and, in fact, of the lode production of the entire terri tory. Among the important develop ments on this property was the install lation of new central hoisting plant and crusber, which was completed ia 1911. At the Treadwell mine ore was taken from the l450 and 1,600 foot levels. and considerable dead work was done on the 1,750 foot level. The l,210 and 1920 foot levels furnished most of the ore at the Alaska-Mexican mine, and the mine workings were extended OH the 1,46O and, to a less extent, on the 1870 foot levels. The ore from the Ready Bullion cane chiefly from the 1.660-foot and l,800 foot levels, and the dead work was chiefly on the HOO and 1850 foot levels In the 700 foot claim productive miniug was done chiefly ou the 1,2lO-foot and 1,32O-foot levels, and dead work on the 1,600 foot level in the shaft Twenty stamps were added to the mill of the 70O-foot claim.
 Besides the Treadwell group, only two other properties on Douglas Island received attention in 1911. A new company is reported to have taken hold of the Bears Nest property and to have done some prospecting. Opera tious at the Alaska Treasure, on Me- vada creek, which had been temporarily suspended about the close of 1910, were resumed in 1911. The main croSscut was extended from 3,1OO 10 3,400 feet, giving depth of 750 feet below the upper (Hudsonl crosscut. Some ore bodies are said to have been found. The work in hand consists in driving from the face of the main crosscut in a northeIIy direction in the expectation of fintersectiup he ore body exposed in the Hudson tthe upper) level.
 Iu 1911, as in previou, years, the Per severance uiue, in the Silver Bow Basin portion of the Juneau gold belt, was operated during the open season, which amounted to l53 days The mill at the Alaska.Jnneau mine was also operated for part of fhe year, but chiefly for sampiing. Plans to develop this property on large scale, which have been under consideration for some years took definite form in 1911. I About 100 feet of an adit tunnel was completed, which will uudercut the 2 ore body of the Alaska Juneau at a depth of about 600 feet. The portal of