INDEX. 
191 
Page. 
raeau, distance to Seattle from 69 
gold near 51 
mean Creek, hydraulic plan! at 97 
uieau Island, rocks of.. 71 
mean mining district, cost of mining in. . 15 
developments and methods in 52 
Assuring in 85 
location of 52 
placers of, character of 35 
irassic rocks, occurrence of loo, 135, 138 
K. 
achemak Bay. coal at 151,152,155^160 
Icoal at, analyses of 170, 171 
character of 159 
cost of 153 
geology of 155 
investigations at 16, 151 
map of 156 
oil at 139 
sections at 156, 157 
amishak Bay, oil at 138 
asaan Peninsula, mines on, character and 
developments of 63 
italla, oil well near 131 
r< >cks near 129 
atalla formation, occurrence and charac- 
ter of 128-129 
atalla River, gas on 133 
oil wells on 131 
rocks on 130 
sediments on 129 
atmai Bay, coal at 162 
eku Straits, coal at 57 
ekurnoi, Cape, rocks at 135 
enai, Lake, gravels at 91 
location of 92 
enai formation, occurrence of 110, 
142, 152, 155, 167 
section of 156 
enai Peninsula, coal on 151 
geology of 152 
enai River, location and character of 92, 94 
ensington mine, developments at 54 
etchikan mining district, copper in . . . 51, 61-64 
gold mines of, developments at 64-68 
marble of 68 
igluaik Mountains, ditches to 19, 21 
ilinda Bay, coal at 163 
ing Creek, coal on 154 
ng mine, location and character of 101 
ink, The, work at 20 
nzie, R. A., on Treadwell mines 53 
irsopp, John, jr., analysis given by 146 
valena River, coal from 184 
walik placers, conditions at 24 
londike district, concentration of gold in . 38 
cost of mining in 43 
high-bench gravels of 25 
methods in 39-40 
placers of, character of 35, 38-39 
obuk district, work in and production of. 24-25 
odiak Island, coal on 151, 162-163 
coal on, analyses of 170 
rocks of 152 
ootznahoo Inlet, coal at 56 
Page 
Kougarok district, placers of, character of. 35 
work in 21 
Koyukuk district, conditions in 30 Ml 
production of 18 
Kruzgamepa region, work in 23 
Kuik Arm, location of 90 
| Kuiu Islands, rocks of 19 
Kukpuk Riv-er, coal on 181,188 
location of 172 
Kushtaka, Lake, coal at 118-144 
Kushtaka formation, occurrence and char- 
acter of 128, 1 12 
L. 
Landsburg, G. N., acknowledgments to 152 
Last Chance Company, work of 31 
Lava, occurrence of 49, 56 
Lead, occurrence of 61 
See also Galena. 
Lewis, Cape, coal at 182 
Lignite, use of 41 
See also Coal. 
Limonite, occurrence of 61 
Lindgren, W.,on metasomatic alteration... 84,86 
Lisburne, Cape, access to 173 
coal fields of 172-185 
geology of 171-176 
investigations at In, 17, 174 
location of 172 
Mesozoic coal, occurrence and charac- 
ter of 176-181 
Paleozoic coal, occurrence and charac- 
ter of 181-185 
! Lisburne Mountains, location of 172 
rocks of 174 
Little basin, developments and methods on . 53 
Little Creek, deposits near 20 
Little Minook Creek, developments and 
methods on 111-112 
rocks on 110 
Little Minook, Jr., Creek, location and char- 
acter of 112 
Lituya Bay, placers at 88 
Lodes, gold, occurrence and extent of 22, 
49-50, 54, 69-70, 98-99, 100-103 
Lodes, tin, occurrence of 121-125 
Lookout mines, work on 62 
Lost River district, location and rocks of. . . 121 
tin of 120-124 
Loyalsock coal, analysis of 117 
Lucky Chance mine, developments at 58 
Lumber, occurrence and value of 26 
Lynx Creek, copper on 99 
location and character of 92 
Lynx Mountains, rocks of 110 
M. 
McConnell, R. G., on Klondike fields 38 
McDonald bar, gold from 113-114 
McGinnis Creek, work on 54 
McKinley Creek, developments on 51-52 
McLenigan, S. B., information from L83 
McNeil Canyon, coal at 152, L58 
coal at, analysis of 170 
Machinery, use of 40, 44 
Maddren, A. G., information from ... 162, 181-182 
Makushin, Mount, height of 102 
