65,735
ounces. The dry or siliceous ores produced 1,175,791 ounces, of which
Granite County supplied 582,845 ounces. Nearly all the silver from zinc
ore, 1,008,141 ounces, came from Silver Bow County.
NEVADA.
Gold.—The
mine production of gold in Nevada in 1916 was $8,866,237, against
$11,404,300 in 1915. The production in 1916 from mines in Esmeralda
County was $2,684,688, a decrease of more than $2,000,000. The
Goldfield district yielded $2,651,158 in gold in 1916, against
$4,389,385 in 1915. Nye County produced $2,505,714, of which Tonopah
yielded $1,941,441. The counties having a substantial increase in gold
were Mineral, White Pine, Humboldt, Storey, Elko, and Clark. Eighty per
cent of the decreased output of gold was caused by the smaller yield
from Goldfield and Tonopah.
Silver.—There
was a decrease in the production of silver in Nevada in 1916, the total
production being 13,837,525 fine ounces, against 14,459,840 ounces in
1915. Nye County (almost wholly from the Tonopah district) again led in
output with 8,868,267 ounces, which was about 1,400,000 ounces less
than in 1915. Churchill County, with 1,386,524 ounces, Humboldt County,
with 869,424 ounces, and Lincoln County, with 559,645 ounces, were the
other counties which had an output exceeding 500,000 ounces. Dry or
siliceous ores yielded all but 1,OSS,614 ounces of the output of silver
and nearly 90 per cent of this yield was recovered by cyanidation.
NEW MEXICO.
Gold.—The
mine production of gold in New Mexico in 1916 was $1,382,480, against
$1,461,105 in 1915 and $1,171,696 in 1914. Socorro County produced
$375,125, which was almost entirely from siliceous ores of the Mogollon
district; Grant County, $419,675; and Colfax County, $422,297.
Copper
ores, chiefly from Grant County, contained $234,342, and dry and
siliceous ores yielded $1,123,732. The output from other
kinds of ore was very small, and the placer output was only $11,116. Silver.—The
mine production of silver in New Mexico decreased from 2,005,531 fine
ounces in 1915 to 1,766,274 ounces in 1916. Socorro County produced
1,081,711 fine ounces, or 61 per cent, chiefly from siliceous ores from
the Mogollon district, the remainder from
mixed
ores of the Magdalena district. The output of silver from Grant County
increased from 508,552 fine ounces in 1915 to 549,907 ounces in 1916,
and most of this yield came from the Lordsburg district. Dry and
siliceous gold and silver ores, chiefly from Grant, Sandoval, and
Socorro counties, yielded 81 per cent of the total; copper ores,
chiefly from Grant, Socorro, and Santa Fe counties, yielded 13 per
cent. The remainder of the production was from lead and copper-lead
ores, mainly from the Central and Magdalena districts
OREGON.
Gold.—The
mine production of gold from Oregon increased 2 per cent, being
$1,902,179 in 1916, against $1,861,796 in 1915. The output in 1916 was
the largest recorded by the Survey for 13 years.
