™f/ht ND ] DEVELOPMENTS IN SOUTHEASTERN ALASKA. 55 
several feet in width, crosscut the series in a northeast direction. In this 
same general course, N. 60° E., are exposures of narrow quartz-filled 
fissures, a hundred feet or more apart, which form the ore bodies of 
the principal mines. A second system of quartz veins, considerably 
larger and striking N. 10° W., is represented at the Portage group of 
claims, 2 miles from the head of the bay, as well as by the prospects 
on the southeast side of Funter Mountain. These have not received 
much development and are reported to be low in gold values. 
The Tellurium mine and numerous other claims, 58 in all, comprise 
the holdings of the Funter Bay Mining Company, established in 1902. 
Since that time nothing more than the annual assessment work has 
been accomplished. At the Tellurium mine, close to the water's edge 
on the south side of the bay, the ore body consists of a quartz ledge 
several feet in width, that strikes N. 60° E., crosscutting a chlorite- 
schist country rock. This ledge is opened by two shafts, each 100 
feet in depth, and by a tunnel 60 feet in length. The ore — the greater 
part of which is free-milling — is treated in a 10-stamp mill and is 
reported to average $8 per ton in gold. The other holdings of this 
company are located at various elevations on the mountain slope to 
the south. The ore bodies consist essentially of stringer leads vary- 
ing from several inches to several feet in width. Assa} r s from many 
of these small ledges are reported to give high values. 
The War Horse mine, 1 mile southeast of the Tellurium, was 
developed extensively in 1897 by the Keystone Gold Mining Company, 
and in 1900 it was again operated, but since that time no important 
improvements have been made. The ledge is very small, averaging 2 
feet in width, but is rich in free gold, which occurs finely disseminated 
throughout the quartz. The developments consist of two shafts 18 
and 125 feet deep, besides 320 feet of drifting along the vein. The 
ore which, after careful hand sorting was shipped direct to the smelter, 
is said to have had a value of about $100 per ton. 
Young Bay. — The continuation of the Funter Bay mineral belt is 
probably represented by the Mammoth group of mines, situated at 
2,600 feet elevation 1 miles south of Young Bay and 12 miles south- 
east of Funter Bay. The ore deposits here, however, differ from 
those at Funter Bay in that the country rock — a schist — is heavily 
mineralized, while the quartz-filled fissures are rare and of very minor 
importance. Within the three defined mineralized zones are many 
rich seams candying galena, sphalerite, and some free gold, and these 
greatly increase the average values of the ore. These ore belts vary 
from 25 to 75 feet in width and have been traced several hundred 
yards along the strike of the inclosing schists. Very high assay values 
are reported in gold and silver, and small smelter shipments and mill 
tests have given sufficiently favorable returns to justify the construc- 
tion of a 1,500-foot crosscut tunnel, which is already 575 feet in length. 
