54 ALASKAN MINERAL RESOURCES IN 1905. 
N. 65° E., with variable dip. A reverse in dip from 30° NW. to 50° SE. was noted between 
the vein at the lower (elevation 2.190 feet) and the upper workings (elevation 2,300 feet) 
and was attributed .to a large synclinal fold in the limestone. The deposits have been 
opened by an inclined shaft 20 feet deep and by numerous open cuts. The metallic min- 
erals are chiefly zinc blende and galena, with low values in silver. Cerussite was observed 
as an alteration product. 
Several other claims have been located above this property on similar veins, but have 
not been developed to any extent. 
The Oregon and Idaho claims arc situated between Dora and Mineral lakes, near Chol- 
mondeley Sound, and are located on a well-defined vein which averages perhaps 3 feet in 
width and is exposed for over 300 feet. The country rock comprises several types of 
s.lusts, often chloritic and folded, and striking usually about north and south with a steep 
dip to the southwest. Good values in silver, goid, and zinc have been obtained from the ore. 
