232 
INDEX. 
Page. 
Mammoth copper mines, operations at (57-68 
ore bodies at 69 
Mammoth Creek, mining on 193 
Mammoth mines, Admiralty Island, work 
at - 59 
Mammoth mines, Douglas Island, work 
at 54 
Manila Creek, antimony ores on 30, 139 
Manley, Thomas, road built by 37-38 
Mansfield Gold Mining Company, opera- 
tions of 56, 59 
Maple Bay, copper mining at 66 
Maps in preparation, list of 18 
Maps published in 1906, list of 17 
Marble, character of 74 
distribution of 74, 75-77 
73-75 
77 
75 76 
76 
46 
... 40-40 
. 89-103 
110,111 
15 
179 
194 
197 
markets for 
Marble Bluffs, marble at 
Marble Crock, marble on 
Marble Esland, marble on 
Martin. <i. C, cited on markets for Alaskan 
coal 
paper by, on Alaska coal fields 
on petroleum at Controller Bay 
quoted on Matanuska coal 
work of 
Marys River. See Kaviruk River. 
Mascot Creek, gold on 
Mastodon Creek, mining on 
Mastodon Dome, elevation of 
Mastodon Fork of Eagle Creek, mining on. 
Matanuska and Talkeetna basins, coal 
in 107-108,109-115 
cupper in 124-125 
economic geology of 109-125 
faulting in 109 
geography of 104-105 
geology of 105-109 
showing 106 
gold in !()7. L15 124 
reconnaissance in. paper on 104-125 
itigraphy of 105-108 
st ructure of 108-109 
Matanuska River, coal on 109-112 
gold on 116 
geology on 107 
surveys along 15 
Melsing Creek, mining on 149-150 
Mendenhall. \V. C. cited on age of minerali- 
zation on Copper River 24-25 
Mendenhall. W. C, and Schrader, F. ('..cited 
on genesis of copper ores of Cop- 
per River 25-26 
Metal Creek, mining on 118 
Metals, precious, geographic distribution of. 22-26 
production of, tables showing 21 
Metamorphic rocks, zones of 23 
Mexican gold mine, operations at 52-53 
Mica schists, occurrence and character of. . . 107 
Milk Gulch, mining in 121-122 
Miller Creek, mining on 194 
Mills Creek, mining on 119, 123 
Mineral Creek, gold in, value of 204 
gold production of 204 
mining on 203-204 
Mining, statistics of 20-21 
: 
Mining industry in 1906, paper on 19-39 
Mirror Slough, gas at 95 
oil seepages at 93- 
Moffit, F. H., cited on gold of Nome region, 
source of 
cited on Nome series 1 
cited on Solomon River dredge 1 
paper by, on the Nome region 126-145 
work of 16 
Money expended in Alaskan surveys, table 
showing 13 
Montana Basin claims, work on 56 
Montana Creek, gold mining on 56 
Moonlight Creek, mining near 154 
Moonshine claims, operations on 72 
Moose Creek, basin of, mining in 214-217 ' 
coal on 115,2H I 
Mount Andrew copper mine, operations at. 67 
Mount Nichawak. oil seepages near 92,93,95 '> 
Murder Cove, coal at 80,8t; 
Myers, U. G., aid by 38 ^ 
Mystery Creek, mining on 148 
Mystic Creek, coal on 226 
N. 
Nclchina River, geology on 107 
gold on 118 
Nevada Creek mines, mineralization near .. 50 
operations at 53-J» 
New York copper claims, work on 7C 
Newlands Creek, filacer mining on Zk 
N'iM.ck Anchorage, copper mining at 7C 
Niblaci copper mine, operations at 7( 
Niukluk River, basin of, gold fields in, de- 
scription of 147-15* 
bench gravels of, section of 14* 
mining on 147 14? 
Xi/.ina River, basin of , gold mining in 3' 
Nome, amount of water available back of, 
1906 IX- 
rainfall at 18J 
Nome region, antimony in 13! 
beaches at, map showing 13- 
bismuth in 13; 
climatic conditions in, 1899-1906 18 
development in 144-14 
economic geology of 138-14 
geology of 128-13 
glaciation in 137-13 
gold in 131, 135, 139, 140-14 
graphite in 139-14 
gravels in 132-13 
lode deposits in 138-14 
mineralization in 131-13 
paper on 126-14 
placers in 34, 140-14 
rainfall in 185-18 
rocks of 128-13 
structure in 13 
stream measurements in 183-18 
stream-gaging stations in 182-18 
tundra in 134-13 
area of, map showing 13 
unconsolidated deposits in 132-13 
veins in 130-lc 
work in IS l 
