INDEX. 
235 
Page. 
Thompson Creek, stream measurements 
on 184,185 
Thome Arm, gold mining on 63 
Tbumm, II. F., aid by 37 
Thunder Creek, gold on 119 
Totatlanika Creek, mining on 208-209 
Transportation, improvements and exten- 
sions of lines of 21-22 
Treadwell mines, operations at 52 
Treasure Creek, gold on 119 
placer mining on 36 
Treasure mines, operations at 02 
Trinity Creek, gold on 179 
Tsadaka Creek, coal on 109, 114 
Tundra, description and gold-bearing gravel 
of 134-137 
mining on 140-144 
T welvemile Ann, mining on 62 
Tyone River, gold on 118 
U. 
United States-Alaska Tin Mining Company, 
operations of 29 
V. 
72 
Vallenar Bay, copper deposits at 
Van Zandt, J. EL, cited on gold shipments 
through Fortymile 39 
Vault Creek, placer mining on 36 , 
Venus copper mines, operations of 68 
Victor Copper Mining Company, operations 
of 72 
Village Creek, tin mining on 28, 29 j 
W. 
Wagner claims, operations on 56 
War Eagle claim, copper mining at 72 
Warren Creek, mining on 151 
Washington Creek, coal from, analysis of. . . 202 
. coal seam on, section of 201-202 
mineralization near, age of 24-25 
mining on and near 177, 200-202 
Water supply, impending exhaustion of, for 
placer mining 33 
Weaver, C. E., work of 15 
Wet Gulch, mining on 118 
Whale Bay, granite on 77 
White Eagle copper mine, operations at 67 
Willow Creek, mining on 116-118, 119, 153-154 
Windfall Creek, gold mining on 56 
Windham Bay, gold mining at 58-59 
e&gh. 
Windy Creek, graphite on 139-140 
mining on .. 171,178 
stream measurements on 185 
Witherspoon, I). C, work of 17 
Woewodski Island, copper deposits at 72 
gold m ining on 63 
Wood River, coal near 226 
W'oodchopper Creek, description of 203 
VVrangell district, copper mining in 72 
lode mining in 63 
silver-lead deposits in 72 
Wright, C. W., cited on Admiralty Island. . 47,49 
cited on distribution of granite rocks. . . 25 
cited on relation of granite intrusions to 
ore bodies 24,25 
paper by, on lode mining in southeast- 
ern Alaska 47-72 
on nonmetalliferous resources of 
southeastern Alaska 73-81 
work of 14 
Wright, F. E., work of 14 
Wright, F. E. and C. W., cited on lode min- 
ing in southeastern Alaska 47, 5g 
Y. 
Yakamaw Mining Company, location of 
property of 54 
Yaktag beach, gold production of 34 
Yakutat, auriferous sanus at 64 
reconnaissance from, to Alsek River, 
paper on 82-88 
Yakutat Bay, surveys near 15 
Yakutat series, copper in 87 
occurrence and character of 83-84 
Yankee basin, gold mining in 57 
Yellow Creek, gold on 218 
Yentna district, gold of 116 
mining in 118-119 
York tin region, lode mining in 28-29 
Young Bay, gold mining at 59 
Young claims, operations at 61 
Young Creek, coal on 114 
Yukon district, surveys in 16-17 
Yukon River, basin of, auriferous conglom- 
erate in 199-200, 203, 204 
basin of, geology of 198-200, 201, 203 
gold production of 21 
placer mining in 35-39 
Z. 
Zinc, deposits of.. „ 72 
