The Denison review. [volume] (Denison, Iowa) 1867-current, 1902-04-22
The Holden Mine, BY j. C. Rathbun,
Mining Editor.

From Seattle Daily Times. July 81 1901.
Without doubt the best known pro-
perty in Chelan county, state of WASH
ington, at any rate the one best known
to mining men, is what is known as the
Holden mine, on Railroad creek, a
stream that flows into Lake Chelan
about ten miles from its head. The
claim was located by j. IL. Holden in
1896 and he has been working steadily
on the property ever since. No sooner
did he prospect 1t than he realized that
it was an immense mining property
1t has been seen by a number OF mining
men and capitalists and MIR. Holden
has refused several Gathering offers for
the properly: he knew as a practical
man that IL was only Il matter of few
years when improved transportation
facilities would enable him to market
the ores at a good profit.
The property consists of three full
sized claims which gives 500 feet on
the one ledge, runs diagonally along
the mountain side, nearly from south
east to south west On the center
claim crosscut tunnel mas been start
ed ana has penetrat ted the ledge dis
lance OF 100 feet, with the hanging wall
nowhere IN sight. The experienced
miners who are at Work upon it say
that they think the ledge is from 1870
to lI0 feet In thickness. How deep the
ledge IS, OF course, no one Knows, bat
up the mountain and somewhat to the
east. the spring ttyalanches that am
nuaiy sweep down the ravine have UNI
covered the ledge. This point is fully
800 feet above the floor OF the tunnel
which. cOnclusively demonstrates that
the ledge is all of 800 feet in depth.
even though there be nothing below
the floor otthe tunnel. How deep one
may sink on the ledge is, OF course, con-
Jectural, but here is the ore in sight:
a ledge 1000 feet long: at least 500
feet deep and at least l20 feet in thick
ness, makln9 total OF 30 600, 900 cubic
feet OF ore, all OF a uniform character.
A few days ago the writ3r was ac-
corded the privilege of examining bnis
'mountaln OF ore. He was handed
hammer and directed to make his own
examination, and be can say that a
piece Clipped off the ledge up the
mountain side has the same general
appearance as piece Clipped off the
SIDE OF the tunnel, whether it be at the
tootwall or IN alta depth of 100 feet.
1t is known among miners that from
10 to II cubic feet of ore will weigh a
ton-it is nearer 10 than u Using l2
IN this instance, it is seen that the
Holden mine presents to view %
5N. 900 tons of ore. Suppose force Of |
men is put to work that will take ont
300 tons cay: it will require II, 600
days to market the ore ia sight,
But what is all this worth when it is |
taken out is the practical question that
almost any one will ask. MIR. Holden
informed the writer that he had taken
a large number of samples from a por
tion OF the tunnel that assayed $50
ton, while he has picked assays from
rlcher portions that assayeti much |
more, many of them going more than
500 TO the ton. Mr. Rufus d. Johnson,
president of the Drummer's Develop
ment Company. says that he has taken
30 samples from the face of the tunnel
covering a depth OF 90 feet, and the /
average assay of all of them was $3.50,
The values run about equal OF gold and
copper.