increased.
Madison County led in total gold production in Montana in 1910, with
$810,921, of which $466,222 came from placers and the remainder chiefly
from siliceous gold ore. As the total placer output of gold in Montana
was $575,917, against $543,372 in 1909, the great bulk of the
production was from Madison County, where 3 dredges and 4 other placers
in Alder Gulch produced most of the output. Silver Bow County ranked
second, with a production of $765,155, almost entirely from the copper
ores of Butte; and Fergus County was third in rank, with an output of
$636,752, from gold-quartz ores of the North Moccasin and the Warm
Springs districts.
The
silver output of Montana in 1910 was 12,162,857 fine ounces, against
12,378,714 ounces in 1909. The decreased output of silver in the State
in 1910 was due to curtailment of copper production. The copper ores
alone produced 9,153,590 ounces, of which 9,139,533 ounces came from
the Butte mines of Silver Bow County. Silver Bow County supplied also
582,185 ounces from dry or siliceous ores, 658,516 ounces from zinc
ores, and smaller quantities from placers, lead ore, and copper-lead
ore, the total silver output for the county being 10,400,840 ounces in
1910, against 10,609,328 ounces in 1909. Jefferson County produced
1,029,579 ounces in 1910, mainly from dry or siliceous ores, and from
the Elkhorn district. Granite County produced 308,423 ounces, of which
303,434 ounces were from dry or siliceous ores and chiefly from the
Flint Creek district. Madison County produced 115,745 ounces in 1910,
of which 109,826 ounces were from dry or siliceous ores.
Nevada.—The
production of gold in Nevada in 1910 was$18,878,864, an increase of
$2,638,901 over the output of 1909, and of $7,515,923 over the output
of 1908. The great bulk of the production came as in 1909 from dry or
siliceous ores, the small remainder coming almost wholly from copper
ores, placers, and lead ores, in order given. The siliceous ores were
produced mainly in Esmeralda County, where Goldfield is the chief
district, and in Nye County, in which are the Tonopah and other mines,
Humboldt County, in which the new camp of National is of importance,
ranking third in output of this class of ore. The production from
copper ores was mainly from the Robinson or Ely district, of White Pine
County, and that from placers chiefly from Manhattan and Round Mountain
districts in Nve Countv. In county production Esmeralda led with
$11,994,338 (against $10,521,562 in 1909), of which the great Goldfield
mines supplied $11,137,150 (against $9,383,261 in 1909), and the
Silver-peak mines produced $842,806. Nye County followed with
$3,661,967 in 1910 (against $2,945,942 in 1909), of which the Tonopah
district produced $2,303,702, the Bullfrog district $416,891, the
Manhattan district $361,602, and the Round Mountain district $392,098.
Humboldt County was third in importance of gold output, with a
production of $1,458,486, mainly from the one mine which has been the
chief producer from notably rich ore of the new camp of National.
Storey County produced $502,843 in 1910, from siliceous ores of the
Comstock mines, and White Pine County $457,565, mainly from copper
ores of the Ely district. Increased gold production in Nevada was
especially notable from the Goldfield, Tonopah, and National mines.
The
silver output of Nevada in 1910 was 12,479,871 fine ounces, against
10,981,061 ounces in 1909. Of the total production Nye
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