The
mine production of gold decreased from $2,014,556 in 1920 to $1,769,905
in 1921. The Bingham district, Salt Lake County, produced $954,525 and
the Tintic district, partly in Juab County and partly in Utah County,
produced $387,774. The placer gold in 1921 amounted to $414 and the
output recovered by cyanidation and amalgamation was about $140,981.
About 16.8 per cent of the Utah gold was derived from copper ores
mainly mined in Salt Lake and Juab counties; lead ore contained 48.6
per cent.
Silver.—The total output of silver in Utah from 1864 to 1921, inclusive, has been 416,485,059 fine ounces, according to Heikes.8
The
mine production of silver in Utah in 1921 was 12,251,998 ounces, a
decrease of 854,978 ounces. The largest production was from Juab
County, credited with 5,031,030 ounces (mainly from lead ores), against
4,650,273 ounces in 1920. Utah County had the next largest output,
2,559,368 ounces (from lead and siliceous ores), against 2,282,461
ounces in 1920. Of the Salt Lake County output of 1,307,382 ounces, the
Bingham district produced 973,984 ounces. The Tintic district, in Juab
and Utah counties, produced 7,577,202 ounces (mainly from lead ores);
and the Park City region, in Summit and Wasatch counties, produced
2,187,236 ounces, mainly from lead and siliceous ores. Altogether in
1921 the lead ores of Utah yielded 5,893,497 ounces of silver, the
copper ores 229,556 ounces, the copper-lead ores 40,309 ounces, and the
dry and siliceous ores 6,088,635 ounces. The crude ore smelted in 1921
contained 9,337,801 ounces and concentrates contained 1,728,116 ounces.
WASHINGTON.
The total production of gold in Washington from earliest mining to the end of 1921 is given by C. N. Gerry,7 of the United States Geological Survey, as $28,255,558, and the total production of silver as 7,965,045 fine ounces.
Gold.—The
mine production of gold in Washington in 1921 was $128,486, against
$120,860 in 1920. Of this production 69 per cent was derived from ores
shipped directly to smelters, and 27 per cent came from gold and silver
milling plants; siliceous ores supplied 97 per cent and copper ores and
lead ores together less than 1 per cent. Ferry County alone produced
$88,290 in 1921, against $110,278 in
1920. Nearly all the yield from Ferry County was, as usual, from the Republic district.
Silver.—The
mine production of silver in Washington decreased from 199,678 ounces
in 1920 to 142,450 ounces in 1921, of which Ferry County produced
29,099 ounces, mainly from siliceous ores, Stevens County 75,189
ounces, mainly from copper ores, and Okanogan County 38,017 ounces,
from siliceous ores and copper ores.
WYOMING.
The total production ofgold in Wyoming from 1867 to the end of 1921 is given by Charles W. Henderson8 as $1,236,121, and the output of sdver for the same period as 69,802 ounces.
Two small shipments of copper ore were made from Wyoming in
1921. The ore contained $3.46 in gold and silver per ton.
• U. S. Geol. Survey Mineral Resources, 1921, pt. 1, p. 341. ' Mem, p. 421. »Idem, p. 367.
