Gold Hill daily news. [volume] (Gold Hill, N.T. [Nev.]) 1863-1882, 1874-09-30
The callstopa Mine.

In the neighborhood OF the Calistoga
| gold and silver mine 10 seen q line OF
bold groupings. marking the mountain
side from north to south, and extending
a. far on either hand rs the eye can
reach. At the point where the works
are situated q deep ravine cuts 1t at right
angles, on the south side Of which the
principal Developments have been made.
In order 10 view the workings
Of the mine you first ascend
by q zig-zag trail up the steep mountain
aide to whore some men are employed
in breaking and hurting down the shuto
huge blocks OF orc. At this point the
cropping. which is porphyitic forma-
ton, with heavy strsaks Of quartz in
termiIsd and largely im~prsgnated with
metal, rises to the hight OF 80 feet
above the surface, and Is some % feet
in width. All along the upper tunnel on
both sides, and at the top and bottom.
the ore is exposed to view. and at the
inner end men are ut work drilling into
q solid mass OF ore. which has the APP
pearance Of being rich in gold and silver.
At the further end Of the tunnel q
cross-cut has been made, which reveals
. ledge ten feet wide. Sixty
feet below the first tunnel . second
one has been driven in on the ore
course about 60 feet, the inner end OF
which must be 200 feet below the crop
pings. The first tunnel driven into the
mine reached o distance Of $50 feet, and
exposed the ledge at q depth Of $50 feet
below the surface, has been abandoned
for q time on account Of the excessive
flow Of water into the S0-foot Wine that
was sunk at the end Of the tunnel. The
mine seems TO occupy q belt OF porphyry
travsrsing . granite formation. which
here forms the country rock. The ore
Is generally Of Q grayish blue color. with
occasional strsaks and lunches OF "ross
quartz" some Of which are crystalized,
while others seem burnt and discolorsd.
Numerous tests have been made by
different assayers. and the results in
every case, 1t is said, were highly salts
factory, the figures running from $50 in
gold and $50 in silver to many hundreds
Of each metal. The silver seems 10 pre-
dominate in the ore from which the
were made. A mill test was made
in one OF the mills Of Virginia City Soma
ago. which gave about $75 per ton
- the result. There are now about 600
tons Of ore on the dumps, . fair sample.
probably, OF that produced by the mine.
OF IONS OF which are in sight,
and II the company's mill that Is soon
to start running realizes the results
claimed for 1t by the owners, they have
. fortune for all, secured from the
surface ores alone. II the ores that
are exposed to view pay a. we'll as
anticipated. and the mine proves
q permanent one, II il the biggest thing
on the coast. The company's mill. two
miles below, and situated on an eligible
position on the road TO Ca~listega, 10 the
mill belonging to the company, and
which will be, when finished, one Of the
most complete in all its parts Of any In
the State. There are two batteries Of
ave stamps each. Weighing $50 pounds
to the stamp; and designed to drop at
the rate Of 80 per minute, each stamp
10 inches. aud will crush about
two tons per stamp, or 20 tons per
day. The amalgamating apparatus con-
sists OF Horns iron pans, weighing A.
900 pounds each, and two large conisal
settlers, and ons pan for cleaning the
amalgam. AL are driven by q 60-horss
power engine. The machinery was all
made by Horace Adams Of Sacramento,
the work designed by @. A. Matter and
built BY G. Lind.-EIehan9e.