El Paso herald. (El Paso, Tex.) 1901-1931, 1910-10-26
BEST ORE At DEPTH
THEORY SUSTAINED
Superior & Boston Shaft
Reaches 907 Feet Below
Surface.

Miami, Ariz., Oct. 26.-The most
noteworthy development at the Supe-
rior & Boston property during the past
week has been the opening of the
Great Eastern vein at a distance OF 10
feet from the shaft on the 500 foot lev
el. The crosscut driven from the Nc
Cav shaft, on breaking into the vein,
showed that the oxidized zone still pre-
walls at that depth and verifies the the
DRY of best ore at depth" on which
the management has been conducting
operations during the past half year
To Continue Sinking Shaft.
1t is the intention of the Superior &
Boston Copper company TO continue
sinking the McGaw shaft indefinitely
With a view to opening up levels at
depths which will in a measure CORES
pond with those of the Old Dominion
mine, where one of the greatest cop
per sulphide strikes of that propertys
career has recently occurred on the
fourteenth level and in that part of the
mine extending toward Copper HILL
1t is not likely that the valuable
Gardner ore body will be developed
further or extracted in any part until
the ninth level OF the McGaw SHAFT Is
established and crosscuts are driven
under the Gardner ore body. Raises
will then probably be put up and the
ore will be shot down and removed
through the McGaw, which the manage
ment proposes to make the main and
virtually the only disable channel lead
ing to and from the mine.
Consulting engineer Frank H. Pro-
bert of Los Angeles is now inspecting
the property and is much gratified at
the prospects for further favorable de-
velopments.
Secure Capital to Push Work.
The property of the Arizona-Colora-
do Copper Belt & Gold Mining & Mill
ing company, which has been worked
most of the time during the past nine
years, but which laid idle during the
summer months, is again the scene of
mining activity. Last spring the Great
Eastern Development company took an
option on the claims. expecting to car
ry on development, but afterwards
turned the property back to the own
erS. Several capitalists interested fl
nancially in the Arizona-Colorado COM
pany have now advanced sufficient cap
ital to continue search for ore in pay
ing quantities and thus far the work
has been successful.
John F. Shaw, formerly president of
the Duquesne Mining company. took
charge of operations at the Arizona
Colorado about five weeks ago in the
double capacity of general manager |
and foreman, and since making neces- |
Sary repairs to the shaft and lateral J
workings has extended a rift about |
40 feet on the eighth level with the re- |
suit that a vein about three feet wide |
and carrying, according to the man. |
agement, ore running 4 percent cop |
per and 80 percent iron. Various tests
of this ore have been made at the Old |
Dominion smelter ard assay offices and /
the results have been encouraging !,
Mr.. Shaw. although employing a /
small force, is making |
excellent Roadway and announces his |
intention of continuing the work for !
at least one year.
Diamond Drilling Continues.
At the property of the Superior & |
Globe Copper company diamond drill
ing below the $50 foot level continues
TO be the only form of exploration
being carried on. The diamond drill
hole is now S25 feet deep. making the
total depth from the surface to which |
the hole has penetrated e75 feet. The /
drill is still passing through diabase
containing no mineral worthy Of men
ton.