The diamond drill. (Crystal Falls, Iron County, Mich.) 1887-1996, 1902-11-22
UNDERGROUND
in HEMLOCK
What a Diamond Drill Report
er saw on a trip through
the mine.

the mine.
A representative of the Diamond
Drill. spent half shift underground
in the Hemlock mine last Tuesday and
was Samply repaid for the time and
labor thus spent.
The Location.
The Hemlock mine is located on the
NV a Of the SW 4 of section 4,44-3S.
II is on the banks of the HemlocE
river, the deposit being under the
river at some points in it's long stretch
The land 10 owned by Jesse Spauld
ing. Daniel CORY the estates OF Mr..
Cory and o. W. johnson The lands
were originally entered for the timber
and later proved valuable for the
mineral thereon.
History.
The Hemlock was located about 30
Years ago by James Gibson. Of Re
nnblic. who succeeded in interesting
a number Of Republic parties TO enter
INTO the exploration Of il A company
"a. formed in the latter eighties and
work pushed Because OF the deposit
being 81 far from q railroad L WAS
necessary for the prospectors 70 show
mo a good deposit in order 70 induce
tbe al & y. III. railroad company TO
bnild the II miles Of track ces afr
70 reach the property They showed
mn a fair sized deposit and ia 1850 sold
II 10 the Pickand Mather people who
has inst about that time abandoned
tbe Walpole AT Iron Mountain and
they moved the machinery plant etc
10 the new location ana continued the
work Of development In 1890 the
railroad was built to the property and
little ore shipped that fall. II has
been a producer since with the ex-
ceptio,. Of 1898 and when it was closed
because Of the panic but reopened IN
1894 and has been continuously a. work
since.
The Formation.
The Hemlock is a true contact
formation. The underlying rock Is
that specie Of greensboro designated at
. Hemlock formation in the Geology
cal survey If the district. The hang
ingis ~ slate but the later develop
ments on the lower level OF the mine
would seem to Indicate that the slate
/, emitting ont and that the ore IS ~
mo IN fold Of the green rock with
that rock formation the Immediate
walls of the ore body. In reality the
vein is not settled yet and indications
noint 70 the next level being an i'm
nortant and Instructive one III the
Hemlock mine formation. The torma-
tion Is continuous one but has been
traced 10 the south only where, on the
adjoining lands, the Michigan mine OF
the divers exists and further south
the Gibson mine of the same concern.
The ore Body
The ore body is long narrow one
living at a pitch of about so degrees 20
tho west. The deposit has been
developed for length Of $500 feet
II isa narrow vein, its average width
being about 10 feet with occasionally a
hallev wnere IL widens to 40 or even ~
feet In other places it narrows TO
CIV or eight feet. The ore body is cut
here and there along it's course with
laan zones called rock by the operators
INIT being really very lean ore one
that will run about 80 per cent iron.
rhaaa lean ore incursions are quite
traorant ON every level but the ex
narience has been that drifting through
Inn w,ll show mp merchantable ore
loud Their length varies from 20 to
- 80. and there is no regularity
about their ocurrance.
The Ores.
Two kinds of ore are found IN the
;mre The kind that existed II the
MINER workings was soft red ore 'ha'
,.ia,aoa go per cent iron and about
300 mos IL was very desirable ore
I'm, ~ depth was attained this soit ore
go, smaIler and its place was taken
-. . hard blue ore yielding about %
,,or cont IRON and 800 per cent phos.
The ore is mainly of this kind pow
the only deposit Of soft ore on the DOT,
~. 80. hs;ro on the extreme south end
a;aining the Michigan and by a1udici-
ons mixture Of the two ores the nine MN,
4 able to produce a product WIN .
guarantee Of SO per cent IRON