fine
ounces, or 16 per cent, chiefly from siliceous, copper, and lead ores.
Notwithstanding greatly increased development and output of ore from
the Chino mines of Santa Rita, in Grant County, the relative output of
silver from copper ores will not considerably increase, as the tenor of
silver in these ores is exceptionally low.
OREGON.
Gold.—The
gold production of Oregon in 1911 was $633,407, against $679,488 in
1910, a decrease of $46,081. Baker County again led in output of gold,
with a production of $389,768, against $401,002 in 1910. Josephine
County was second, with $99,363 in 1911, against $150,048 in 1910. The
total placer production was $168,274, of which Josephine County
produced $86,557 and Jackson County $25,740. Of the gold output from
deep mines, Baker County produced $372,405, Lane County $30,154, Grant
County $25,492, and Jackson County $20,787. Three dredges in Oregon
produced $14,575 in 1911, against an output of $34,010 from 6 dredges
in 1910. The gold production of the State decreased both from placer
and from gold-quartz mines. Southwestern Oregon produced $188,971 in
gold in 1911, against $209,324 in 1910, and or these amounts the
placers produced $123,008 in 1911, against $130,103 in 1910.
Northeastern Oregon produced $444,436 in 1911, against $470,164 in
1910, and of these amounts the deep mines produced $399,170 in 1911,
against $429,342 in 1910.
Silver.—The
silver output of Oregon in 1911 was 45,221 fine ounces, against 35,978
ounces in 1910. Of the total production, Baker County produced 30,944
ounces in 1911, against 29,835 ounces in 1910, mainly from siliceous
ores. This class of ore produced 34,011 ounces in Oregon in 1911. The
copper ores of Josephine County supplied 9,953 ounces, and the placers
throughout the State the small remainder.
SOUTHERN APPALACHIAN STATES.
Gold.—The
combined gold production of Alabama, Georgia, North Carolina, South
Carolina, Tennessee, and Virginia in 1911 was $159,361, against
$179,505 in 1910. North Carolina maintained the lead in gold output
with $70,282, followed by Georgia with $35,070, South Carolina with
$20,408, and Alabama with $18,916. The output was mainly from
gold-quartz ores, especially from North Carolina, and placers, mainly
from Georgia.
Silver.—The
silver output of the Southern States in 1911 was 108,105 fine ounces,
against 91,069 ounces in 1910, and 63,419 ounces in 1909. Of the total
production the copper ores of the Ducktown district in Tennessee
furnished 106,660 ounces in 1911, the small remainder coming chiefly
from gold-quartz ores, particularly of North Carolina, and from
placers, mainly from Georgia.
SOUTH DAKOTA.
Gold.—The
production of gold in South Dakota in 1911 was $7,439,874, against
$5,402,257 in 1910, and has only been exceeded by the record output of
$7,657,376 of 1908. The total production of gold in South Dakota from
1875 to 1911, inclusive, has been $162,743,468. The production is
almost wholly from siliceous ore
