GOLD, SILVER, COPPER, LEAD, AND ZINC IN IDAHO 349


district was 35 percent greater in 1941 than in 1940, chiefly in consequence
of the increase in output of silver and lead from the Clayton property. This
mine was operated continuously, and 36,880 tons of silver-lead ore were treated
by flotation In November the company (Clayton Silver Mines) began to erect
an addition to its mill buildmg to house a zinc-recovery plant. Lessees continued
to operate the Ramshorn mine and shipped 938 tonsof lead-silver ore and lead-coppersilver
ore. The rest of the district output was largely silver-lead ore from the
Riverview and South Butte properties.
 Bo'ijf,der district —Lessees continued to operate the Livingston mine
and treated 114 tons of silver-lead ore by gravity concentration.
 East Fork district.—A small lot of lead ore was produced in 1941 from
the 1? D R prospect
 Loon Creek district —A little high-grade gold ore was produced in
1941 from the Last Chance claim and placer gold from the Brush claim
 Seafoam district —There were four pi od~icers in the Seafoam district
in 1941, but most of the output was crude gold ore from the Lake View mine
 Stanley and Stanley Basin district —The decline in metal output in
the Stanley and Stanley Basin district in 1941 resulted from suspension in
April of production of crude gold-silver ore from property operated by the
Western Gold Exploration Co The company worked most of the year on development
and in building a new 100-ton concentration and cyanidation plant. Placer
gold and silver were recovered, largely from the Elk Creek Placer, by a dragline
floating dredge.
 Yankee Fork district.—The value of metal production in the Yankee
Fork district in 1941 was $463,910—an increase of $294,912 over 1940.
The principal output was placer gold from the Yankee Fork Placer and lode
gold and silver from the General Custer-Lucky Boy group. The marked increase
in placer gold resulted from regular operation of the 8-cubic foot bucket
dredge of the Snake River Mining Co. at the Ya~ee***Fork property~ About
16,00 tonsof gold ore from the General Custer-Lucky Boy group were treated
by amalgamation and concentration.
ELMORE COUNTY

 Bear Creek district.—Gold ore was produced in 1941, chiefly from.
the Avalanche-Richmond, Luck, Duces Wild, and Jungo properties.
 Boise River (Twin Springs) district.—Small-scale placer operators
along the Boise River near Twin Springs recovered 43 fine ounces of gold
and 14 fine ounces of silver in 1941.
 Middle Boise (Atlanta) district.—-The value of the metal output of
the Middle Boise district increased to $1,056,289 in 1941, owing to substantial
gain in output of gold from the Boise-Rochester-Monarch groups and to operation
of a new 7%-cubic foot bucket dredge by Boise King Placers. Talache Mines,
Inc., operated its property (BoiseRochester-Monarch) continuously and treated
121,355 tons of gold ore by amalgamation and concentration; this property,
with a production of 23,027 fine ounces of gold in 1941, remained the chief
producer of gold in Idaho. Boise King Placers became a large producer of
placer gold through operation, from June 15 to December 31, of a bucket-line
dredge.
 Snake River district.—Placer gold was recovered in 1941 by various
operators along the Snake River near King Hill.