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844 MINERAL RESOURCES, 1914----PART I.
silver,
but during 1914 somewhat increased recovery in precious metals was
reported, mainly in gold. The gold and silver tenor, however, continues
exceptionally low.
OREGON.
Gold.—The
mine production of gold in Oregon in 1914 was $1,591,461, against
§1,627,710 in 1913, a slight decrease from 1913, but a considerably
higher output than for any other recent year. The output is almost
wholly from siliceous milling ores and from placers, the former showing
a material decrease and the latter a considerable increase. Baker
County alone produced $1,313,967, leading in output from both ores and
gravels by a large margin. Josephine County produced $111,428, mainly
from placers. Altogether the Oregon placers yielded $548,317 in 1914,
an increase of $97,689. There was but one dredge in operation, but it
made a notable yield, and another boat has been built. The deep mines,
producing almost wholly gold muling suiceous ores, yielded $1,043,144
in 1914, a decline of $133,938.
Silver.—The
mine production of silver in Oregon in 1914 was 142,552 ounces, a
decrease of 36,484 ounces, most of the output being from siliceous
muling ores, principally from Grant and Baker counties
SOUTH DAKOTA.
The
total value of the production of gold in South Dakota from 1876 to the
end of 1914 is given by Charles W. Henderson, of the United States
Geological Survey, as $185,287,640. The total output of silver for the
same period was 5,832,669 fine ounces, valued at $4,213,674.1
Gold.—The
mine production of gold in South Dakota in 1914 was $7,333,508, against
$7,319,294 in 1913. The output is almost wholly from siliceous milling
ores and the bulk of this is low grade and is treated both by
amalgamation and cyanidation. The Homestake mines and mills were
operated continuously andproduced $6,160,161 in bullion from 1,587,774
tons of ore treated. The company reports a continued large reserve of
ore and a saving of 94 per cent of the values in treatment. The Golden
Reward, Reliance, and Trojan mills were also operated regularly and the
new Mogul mill began work. There was a small output of shipping ore and
a small placer output from the State.
Silver.—The
output of silver, derived mainly from refining the gold mill bullion
produced, was 176,642 ounces, or about the same as in 1913.
SOUTHERN APPALACHIAN STATES.
The
total production of gold from 1799 to the end of 1914 in the southern
Appalachian States is given by J. P. Dunlop, of the United States
Geological Survey, as $50,689,568.2 The data are compiled
from early reports of the Director of the Mint and recent reports of
the Geological Survey. The figures credit Alabama, from 1830 to 1914,
inclusive, with" $749,384; Georgia, for the same period, with
i IT. S. Geol. Survey Mineral Resources, 1914, pt. 1, p. 240,1915. 2 U. S. Geol. Survey Mineral Resources, pt. 1, p. 142,1915.
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