Los Angeles herald., 1909-01-25
COPPER BOOK
OF CALIFORNIA
BUREAU ISSUES HANDSOME
VOLUME
CONTAINS DESCRIPTION OF ALL
MINES
Fifth State in Copper Importance Will
Long Remain Great Factor in
ndustry-lncrease Is
Gradual

Copper Resources of California" is a
handsomely illustrated and neatly cloth
bound volume just published by the
California state mining bureau as Bull
letin No. so.
This book furnishes descriptions Of
the different copper mines in the state,
| together with their location; names Of
! owners and their addresses Maps and
descriptions of the new copper districts
are also included. 1t is up to date and
contains much information of value to
those interested in copper production.
| Inc book was published under the
direction of Lewis E. Aubury, state
m1neralogist. From the book the fol-
lowing valuable information on copper
is obtained:
Copper occupies the place of third
importance in the annual record Of Cal
| lfornla'S mineral production, and with
an output Of 32,602,9 pounds, valued
! at $6,341,3S7 in 1907, California is the
| NTH copper-prOducing state in the
| Union. The total production for the
past twenty years, from 1887 to 1908,
was 291, 742 pounds, valued at $44,-
| O38,O0S. While Michigan, Arizona and
Montana greatly exceed this output,
! the hgures of the worlds production
show that this state will undoubtedly
| assume a much larger Importance as a
| copper field and that it will long re-
main an important factor in the in
! dustry.
Is Old Industry
| The copper industry is an old one in
| California. Many thousands of tons
of rich ores were shipped for reduction
from San Francisco to the Atlantis
coast and Europe between 1861 and 1886:
| but heretofore for many years the in
! dustry remained at a low ebb, and cop
ger was one Of the minor mineral prod
| ucts OF the state: In 1896 came the dis
! coVery of possibilities of the large COP
| per belt In Shasta county, the result of
/ the reopening and successful operation
| OF the mine Of the Montana Copper
| company in Iron mountain. This mine
soon took high rank among the great
| copper mines of the world The fur
| ther exploitation Of the Shasta coppel.
| belt soon followed the success of the
Montana Copper company, and in 1901
! a great property, the Bully Hill, en-
| tered the field as a producer, equipped
| with a modern smelling plant
| Since then number of other mines
/ have been developed into great pro
ducers, the most important being the
Mammoth, the Balaklala and the At
| terthought
CALIFORNIA; copper deposits have ]
| remarkably wide distribution, being
scattered over the length and breadth
| of the state and appearing in practical
|
| Thousands of deposits have been sub
Ject to mining locations at different
! times, and hundreds have yielded at
! least few tons of merchantable ore
as result of superficial prospecting.
Of Economic Importance
| The deposits of economic Importance,
however, are mainly concentrated in
| certain belts and districts which re-
| quire chief consideration. For convent
| ence the copper deposits of the state
are grouped in this bulletin in four
| geographical divisions: Shasta county.
| the coast range, the Sierra Nevada
range and the general arid region of
southeastern California. Many copper
| deposits are widely scattered through
out Southern California, especially
| through the mineralized desert region
of the southeastern part of the state.
| These deposits much resemble those of
Arizona in their character.
| The principal commercially useful
copper ores found in California are the
| sulphides, carbonates and silicate of
| copper.