54 ALASKAN MINERAL RESOURCES IN 1904. [bull. 259. 
MINES NOKTH OF JUNEAU. 
Northward from Juneau along the mainland as far as Berners Bay 
much attention has been directed to the many prospects, and some 
promising leads have been discovered. Besides the operations in pro- 
gress on the placers of McGinnis Creek and Windfall Creek, previously 
mentioned, investigations have been advanced on the quartz ledges at 
T Harbor, Eagle River, Yankee Cove, and Berners Bay. 
The Peterson group of claims near T Harbor, 20 miles north of 
Juneau, was bonded and operated the early part of 1904, but, owing to 
mismanagement, developments were suspended in the fall. 
The property of the Eagle River Mining Company, 25 miles north 
of Juneau and 7 miles from salt water, has been opened by several 
hundred feet of crosscutting and drifting. The quartz ledge varies 
from 3 to 6 feet in width and is reported to be of high grade ore. A 
20-stamp mill close to the river is in operation and is connected with 
the mine tunnel, 260 feet above it, by a cable tram. A tramway 3 J 
miles long has been built from the beach and the remaining 3J miles is 
covered by a wagon road. The ore is reported to average $30 per ton. 
The Alaska-Washington Gold Mining Company, operating west of 
Yankee Cove, has completed several hundred feet of tunneling, also a: 
50-foot shaft, during the year. The ledge is reported to be of high- 
grade ore and though of no great size is supposed to be of sufficient 
value to warrant farther developments. 
At Berners Bay the Kensington mine has been under development 
during the summer, and a crosscut tunnel 1,800 feet in length has 
been completed, cutting the ledge 95 feet in width at a depth of 1,400 
feet below the surface. The quality of the ore is reported to improve 
with increasing depth, and the property promises well as a future gold 
producer. Flans have been made for the erection of a large mining 
and milling plant, and a town site has been surveyed along the shore 
below the mine. 
At the Jualin and other adjacent mines near Berners Bay, no exten- 
sive improvements were accomplished in 1904, and no recent discov- 
eries of much import were made in the vicinity. 
MINES ON ADMIRALTY ISLAND. 
Fxmtev Bay. — Funter Bay forms a harbor on the east side of Chatham 
Strait, 10^ miles southward from Point Retreat, the most northern 
point of Admiralty Island. The rocks exposed along the shores of 
this bay grade from amphibole to chlorite-schists, and are interstrati- 
fied in places with beds of marble. There is evidence of much folding 
throughout this entire series, the anticlines and synclines often being a 
thousand feet or more in width. The general strike is north-northwest 
and the prevailing dip southwest. Dikes of a basic character, averaging 
