$346,137,
or $132,596 less than in 1921. Of the output from deep mines 69 per
cent was obtained from siliceous ores. The deep mines of the State
produced $185,431, a decrease of $217,870. Three dredges in Baker
County and one dredge in Grant County produced $269,994, and a few
drift and hydraulic mines and surface placers in Baker, Coos, Curry,
Douglas, Grant, Harney, Jackson, Josephine, Malheur, Union, and Wheeler
counties produced the remainder of the placer gold. Baker and Grant
counties produced more than $100,000 in gold each.
Silver.—The mine production of silver in Oregon in 1922 was 151,812 fine ounces, an increase of 109,692 ounces. Of the total
f
production 134,396 ounces came from siliceous ores, 14,405 ounces rom copper ores, and 3,011 ounces from placer bullion.
SOUTH DAKOTA.
The total value of the gold produced in South Dakota from 1876 to the end of 1922 is given by Charles W. Henderson,4
of the United States Geological Survey, as $236,746,624, and the total
output of silver for the same period as 7,032,217 fine ounces^
Gold.—The
mine production of gold in South Dakota in 1922 was $6,517,788, against
$6,605,167 in 1921. The output was almost wholly from siliceous milling
ores of low grade. More than 69 per cent of the deep-mine output was
recovered by amalgamation, and the remainder by cyanidation. The
Homestake mines and mills produced $6,285,318 in gold bullion from
1,663,485 tons of ore treated. The small yield of placer gold (88
ounces) came from Pennington and Grant counties. The very small placer
output of Custer County did not reach a market before 1923.
Silver.—The
mine output of silver, derived mainly from refining the gold bullion
produced, was 118,760 fine ounces, or 6,296 ounces more than in 1921.
SOUTHERN APPALACHIAN STATES.
Gold.—The
total production of gold from 1799 to the end of 1922 in the southern
Appalachian States, as shown from data compiled by the Bureau of the
Mint and the United States Geological Survey, has been $51,055,432. The
figures credit Alabama with $766,632, Georgia with $17,829,190, North
Carolina with $23,634,259, Tennessee with $273,922, Virginia with
$3,298,032, South Carolina with $5,181,992, and Maryland with $71,405.
The
combined mine production of gold in the southern Appalachian States in
1922 was $10,221, against $9,934 in 1921. Tennessee led with $4,320;
Georgia was next, with $3,224. The gold produced in Tennessee was
derived from copper ores of the Ducktown district. The production of
gold from placers amounted to 110.78 ounces. Copper ores in Tennessee
yielded about 209 ounces of gold, and siliceous ores in North Carolina,
Georgia, and Virginia yielded about 150.5 ounces.
Silver.—Copper
ores in Tennessee yielded 78,341 ounces of silver in 1922, and
copper-lead ores in Georgia 350 ounces. Siliceous ores and placer
bullion yielded only 29 ounces.
U. S. Geol. Survey Mineral Resources, 1922, pt. 1, p. 194,1923.
