Custer weekly chronicle. [volume] (Custer City, S.D.) 1890-1931, 1897-07-31
Mining Items.

nearer perfection than any heretofore
in use. 1t is called the Willy" and
we are told that the concentrates ob.
tanned bring a higher price in the mar
ket than any other by reason of their
being more clean. The capacity of the
table is from Is to % tons per day
according to the fneness of the crushed
ore.
Yesterday we were shown some very
fine samples Of ore, from a new strike
near TIE head of the north fork OF
French creek. These samples of quartz
contained an abundance Of pyrite o
copper, while much Of the rock, o..
pecially in the seams, showed green
carbonate of copper and azurite. The
vein is said to be q large one, and the
owners are at work developing 1t as
fast as men can sink. Samples have
heen sent away for assay, but the re-
turns have not yet been received.
Mark Willis and ID. w. McFadden of
Custer are the lucky owners
RICH DISCOVERY.
Parties in from Rockford state that a
discovery has been made on the divide
between Rapid and Castle creeks, three
miles northwest of Rockford, which
promises to attract widespread attention
from miners and prospectors. Early
last spring, while working in this vicin-
ity, a wood chopper picked up a couple
of pieces of float which he subjected to
the pan and mortar test. The result
was surprising, for the rock proved ex
ceedingly rich. Heimmediately located
two claims, but through some irregular
tiles in making the 10 :ations q large
fraction was left between the two
claims. Parties with a better know
ledge Of mining and prospecting than
was possessed by the wood chopper soon
became acquainted with the fact and
located the fraction. On this fraction
the vein has been struck, and n trial
trench, sixty feet long and twelve feet
deep, has been dug across the formation
and the wall has not yet been struck.
The rock they are at present working
in is known as diorite, hornblendic
schist, is freemilling and assays Of it
have given returns Of from $50 to 500
per ton in gold. The property will be
thoroughly developed and prospected,
and should the good showing made in
the surface continue with depth means
will be found to treat the ore on the
ground. The discovery has caused q
slight fiutter of excitement in the vicin-
ity of it and several persons are now
developing claims, and many are get
ting good prospects. The Reviews in
formant states that all the properties in
the vicinity Of Rochfyrd upon which
work is being prosecuted are looking
fine and that the people there are hope.
full that the long looked for awakening
which has been promised the town will
not be much longer delayed.-Mining
Review.
CoPPER ON JIM Rec
Louis G~rosbeck, who has until the
last month or so been employed at the
Penobscot mine in Blacktail gulch, in
the capacity of foreman, will leave for
Jim creek, twelve miles west Of Rapid
City, where he has been at work for the
last few weeks upon some excellent
copper prospects. He has been work
ing in ore down there that assays from
ten to forty.fiv per cent in copper,
besides carrying from four to eight
ounces Of silver and four to five dollars
per ton in gold. He has a fine deposit
of this ore, aud is sinking a shaft in it,
being down about sixteen feet at present.
The ore is a liver colored rock, is found
in vertical lodges, and Mr.. Grosbeck
believes the supply is inexhaustible.
He has put in considerable time at the
Anaconda copper mine in Montana, and
is familiar with that metal and the ore
in which it is found. Copper differs
from most metals in the nature Of its
deposits, always being found In a better
below water level. Mr.. Gros-
says the copper ore that is sent out
from Anaconda to various shelters
throughout the country, is a huxing
proposition averaging about 7 per cent
If the ore that is treated at the
smelters at the mine carries
three per cent copper it pays. He says
he has twenty-five or thirty tons of ore
on his Jim creek dump that will beat
this ont of sight. taken right from the
top.-Pioneer-Times.
PLACER MINING IN MEXICO.
1t it predicted that when the gold
placer mining is developed in the state
of Guerrero, Mexico, more gold will be
taken out than in the Klondyke region.
Some placer mining is being done with
excellent results, and labor is cheap and
water abundant v in the dry season.
One miner, an old Californian, reports
taking out $4,000 gold in May, and his
average is $4,000 per month. The In
dams in Sonora. who work in a crude
a Ia the local gold placers, only
operating when in pressing need Of
money, get large returns from very little
labor, and an explorer who has rently
been through the remotest regions,
states that Sonora will equal Cslifornis
in its palmiest days as a gold producer.
Notice.
0rrIcr on COuNrv Aunrrop