LODE MINING IN SOUTHEASTERN ALASKA. 
By Charles W. Wright. 
INTRODUCTION. 
The results of the developments in the lode mines of southeastern 
Alaska during the year have been encouraging. Many of the pros- 
pects have grown into metal producers, and the mines have with but 
few exceptions increased their output. The Ketchikan district, the 
most active in these advances, is now an established mining center. 
In the Juneau district considerable progress has been made, though 
much looked-for development did not materialize. Mining interest in 
the Sitka district was renewed by the discoveries and successful explo- 
rations near Cape Edward, on Chichagof Island, but no important 
mine improvements are to be noted in either the Wrangell or Skagway 
districts. 
The investigations of each successive field season bring forth new 
facts bearing on the geologic as well as the economic conditions in the 
southeastern portion of Alaska. Although much of the information 
contained in the present report has already been published," it is, 
nevertheless, advisable to repeat the general facts so as to combine 
with them the results of the present year. In this manner the impor- 
tant conclusions are presented without delay, and the more detailed 
discussions of the geology and mines are given in the separate reports 6 
on each district. 
GEOLOGY. 
Only those few geologic facts can here be given which are necessary 
to an intelligent description of the mines and which may also serve in 
some degree to guide the prospector in his search for new ore bodies. 
a Wright, F. E. and C. W., Economic developments in southeastern Alaska: Bull. U. S. Geol. Survey 
No. 259, 1905, pp. 47-68; Lode mining in southeastern Alaska: Bull. U. S. Geol. Survey No. 284, 1906, pp. 
30-54. 
& Spencer, A. C, The Juneau gold belt; Wright, C. W., A reconnaissance of Admiralty Island: Bull. 
U. S. Geol. Survey No. 287, 1906. Brooks, A. IT., Preliminary report on the Ketchikan mining district: 
Prof. Paper U. S. Geol. Survey No. 1, 1902. Wright, F. E. and C W., The Ketchikan and Wrangell mining 
districts (in preparation). 
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