The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1910-06-12
Supt. Griggs Believes Depth
Planned Will Open Camps
Greatest Mine.
RECENT REPORT IS
HERE REPRODUCED
Biz Results Seem Due When
Badly Shattered Zone Is
Penetrated.

Now that the May Day Mining COM
pany, reaching the crucial period of its
history, has decided that nothing re-
mains but TO sound better depths In the
search for ores. stockholders are ask
ing what chances the mine has OF re-
spending TO this new and interesting de-
vclopment work The situation Is very
clearly set out In the recently submitted
annual report OF Superintendent I, -
Griggs, portion OF which is here re-
produced as timely material on which
those interested can depend fer draw
ing their conclusions The report fol-
lows.
II may be said speaking generally. that
the year has been one OF development
AS outlined in my last annual report
we found that while the May Day mine
has been very large ana rich mine, that
the ore bodies have been all more or less
surface ores. That is, they have been
the 500-foot level of the mine they
seeemd TO bottom in layer OF zinc,
which indicated that the zine, being the
last TO precipitate, the ore was orig
inally deposited from descending solu-
rions. We also find ali the ore bodies
10 conform in their beds 70 the gen
above them. Previous to this time last
year we had thoroughly prospected the
200 and S00-fooJ levels, with the result
that we found great body Of min
cr extent OF the mine, which seemed
10 Indicate that this body of quartz.
Jndue III Il great layer underneath all
these upper or so-calicd surface" ores.
While the Godiva mine was operating
previous 10 the death of John Q, Pack
ard, they encountered this same physi-
cal condition in their mine. with also
the result OF opening up some ore close
10 the May Day lines. Finding some ore
in paying values within this body OF brec-
ciated quartz. they considered il very
same conditions in the Gemini mine
where they sunk through 500 feet OF
,ia, t.1,, -,..N1
and better ores than they ever encoun-
tered on the levels above. They held TO
the theory that the values had leached
through this broken mass of quartz and
were later deposited below Accordingly,
they proceeded TO sink their shaft deeper,
thinking to get below this great body of
does contain low-grade values, but be-
fore they had reached their objective
point Mr.. Packard unfortunately died
and their work came TO stop.
We, feeling that their experience and
theories wore we'll founded, and having
this showing of ore next to our lines.
which we thought might be the top OF
this secondary deposition. decided to sink
our workings deeper and find II we were
at the bottom. or rather commencement
OF the deep ore bodies, which there is
We accordingly sunk winzc TO the
1lo0~foot level. 800 feet deeper than the
main working shaft in. the property. and
the 1000 and l100-foot levels
On the l000-fuot level VIC opened uD
a very nice body of good ore. contain
ing some very good values. as we'll as
connected with the place where the Co
dive mine showed ore on our side lines.
but in both places we found the Same
broken UP body of quartz. and the ore
contained therein not having true line
walls. but laying more as n pocket In
8 large mass Of quartz. AS a matter OF
fact, AL the quartz is vein matter and
very low-eradc ore. and ore bodies to
he of material values must have lime
walls. and the orc be contained In the
veins between these walls, As p general
rulc In this district these pockets OF orc
lying in a mass OF quartz are not quite
extensive enough to make the ore in
commercial quantities.
This looked very encouraging. how
ever, for IL was the top or commence
ment Of the secondary enrichment. and
work was pushed on 10 develop the next
level or the 1l00-foot. below This level
was satisfactory only in the fact that we
encountered the Same broken up condi-
tion lying underneath the ore found on
the 100foot level. indicating that
the second deposition lies still deeper.
How far 1t extends downward we cannot
say just at present. but ! will place
myself on record as saying that IL Il
IS ever decided upon to go deeper and
persistently follow up this breccIated
quartz. that some time perhaps lying
very much deeper than we now are there
will be found one Of the biggest and best
,ninnS pyPr onppeJ I'm tbis ict