Los Angeles herald., 1908-04-20
DULZURA TOHAvE
TRUE GOLD TEST
BUCKH0RN COMPANY WILL
SINK TO GREAT DEPTH
NEW MINING REGION ONE OF
GREAT PROMISE
Porphyry Dikes Are Well Defined and
Surface Ore JustIfies Extensive Ex-
poratlon--climate, Water
and Vegetation
speeIal to The Herald.

months in the year where the summer
winds never cease; mining where the
pungent odors of the sumach and the
California lilac constantly assail the
nostril, where canyon and hilltop are
flowered and the feeding ground of bee
and humming bird; mining where the
fig tree and the orange tree thrive with
the peach and apple, and where there is
grazing for horses and cattle in apuh-
dance. mining where there is an abun-
dance ,of water under high pressure
and where, In thirty miles, are the lux
uries of Coronado Beach and San Diego
ALI this is Dulzura.
with climate and water, vegetation
most lavish, Dulzura has more, for her
ores are standing the test OF repeated
assaying, are proving good under tne
merciless scrutiny of the mining Woriu
and are to receive the attention tha'
they have been so long denied,
Dulzura IN the popular mining under
standing is a camp six weeks old. 1t Is
spoken of as a discovery. 1t is a new
camp, but not discovery, unless IL DC
a discovery to men of means VINO are
exploring it's veins and ore bodies. Dull
zura has been known for over twenty
years as a region of porphyry dikes,
we'll defined, and some work was done
The early work is an index to the prac-
tical errors that were made and the
causes. in part, of the failure then. The
state mineralogy department has re-
Ieatedly encouraged work in the Dul-
zura region.
Duizura, which is the region to the
south of the old Spanish hamlet of that
name. about eight miles from the Mexi-
can line is in the San Ysidora noun
fhn Coast range
in the extreme southwest corner of the
United States. The mountains are not
timbered except with large underbrush,
but have an abundance of that and
nearly every gulch has It's live springs
and its water pools. Some of these
gulches are rich in small placer dig
gings and one digging in Artery gulch
has turned out over $1,000 with pan
work. This Is right at the base of the
Golden Artery mines opening. The
placer diggings, however, are a short
story and of too little consequence to
consider seriously.
Bear High Values
The big fact of the Dulzura region is
that openings of the porphyry dikes In
q score or more of places has revealed
outcroppings that bear high values.
And these higl values, that seemed to
sfartle the mining world a. few weeks
ago, are not new. year ago-April
rs, 1907, to be exact-D. Longo, SUI
perintendent of the Ivanpah mine at
Searchlight, visited the Dulzura region
and took some samples of surface rock
which he had sampled by G. e. Anth-
ony, an assayer at San Diego. This ore
assayed $746. .S7 to the ton. Another
sample Mr.. .Longo had assayed by Mr..
Anthony returned a value of $2116.76.
It was elk weeks ago that Charles
Mecham working on the claims that
are now the Buckhorn mine, struck ore
on the surface that showed the follow
ing values: $4,000, $1,000 and 5000. Two
pieces of rock from the same spot were
sent to Anthony of San Diego and
Morse of Los Angeles for assaying. The
first returned a value of $611 and the
last $500. The next day Sheriff Broad
max of San Diego county, while digging
q shallow hole ont his Catherine c.
claims, two miles from the Buckhorn,
found ore that returned $500 value.
Mecham's discovery led to trenching by
those interested in his work and the
pahallel veins of porphyry were clearly
disclosed ana traceable for great dis
tance.
In the succeeding few days there was
rush to the scene of the new strike,
an enthusiastic prophecy that II, was
second Cripple Creek, and then hush.
There were dubious reports from min
ing men who visited the region and
there were reports of assays that
showed but 40 to so cents to the ton.
Dulzura, so far as the outside mining
world was concerned, was under wet
blanket.
Wildcats Discouraged
When news of the discoveries was
sent out many men who have made
names by promoting mining enterprises
at the expense of the gudgeonS hurried
to the scene. Some of them attempted
to locate on patented land Others who
made loud noise acquired nothing and
never had else than borrowed samples.
They were the men who kite wildcat
companies and some OF them were the
first to declare that the camp was
worthless and that the ore could not
be worked profitably Then they left.
Thus two phases of the Dulzura ex-
citement are accounted for-the boom
and the lull.
\ But those men in San Diego who held
the claims in the mineral region, as 1t
was charted. said nothing. They de-
clned offers of assistance In organizing
stock companies and went ahead in
their own way exploring their proper
ties. The result is that men of sub
stantiai character in the mining busi-
ness have sent their experts to look
over the region and they unite in say
ing taat the geological conditions JUS
tify great hope of large ore bodies with
depth.
Porphyry Dikes
The gold bearing rock is porphyry
which is in ldikes with walls, so far as
is known, Of granite on one side and
sometimes rhyolite and again slate on
the other. The granite is not the true
but the metamorphic rock, but the slate
is Enthusiastically the real article.
Through these porphyry dikes there
are great lodges Of porphyry quartz
which seems to be changed in places by
cross lodges to blue quartz. The white
quartz 81 ows strong indications of sui
phides with depth and the blue quartz
carries small strings of tellurium and
sylvanite. From the blue quartz the
largest assays have been made
The presence OF the tellurium is a
puzzle. Some of the ore which shows 1t
iuns very high and others runs very
low. This is a seeming eccentricity
that is expected to be explained when
depth is reached. With depth and place
the ore is expected to be found In large