THE MORNING OREGONIAN MONDAY, TTUITS 30, 1900.
2T
that erosion has removed much more ma
terial from the -surface at the Musick
than at the Champion, which Is on the
crest of the ridge.
The property has been owned for three
years by the Hartford Mining Company,
of Chicago, but for a year and a half it
has been idle. It is unquestionably a
pood property, and is supposed to have
10 feet of ore running $40 in gold to the
ton. It is reported that work will be re
sumed at the mine this year.
The Itoonday
The Noonday mine, formerly known as
the Annie, is located on Grouse Moun
tain, about a mile east of the Champion.
A five-stamp mill was run for a number
of years. In 1896 the company erected a
20-stamp mill, far below the mine, on
Horseheaven Creek. The mill was run
less than half a year, and has since been
closed.
The Noonday has a large amount of un
derground workings. The drifts and tun
nels are over 2000 feet in length, dis
tributed at three levels, each of which
is connected directly by a tunnel with
the deep slope about the head of Horse
heaven Creek. The lowest levels which
is the most extensive, reaches a point on
the vein about 300 feet beneath the sur
face. The course of the vein varies from
north 55 degrees west to north 85 de
grees west, and the farther westward it
is followed the more it bends to the
60uth, toward the irregular brecciated
mass about Knott's original claim on
Grouse HilL In dip It varies from 75
degrees north to 85 degrees south, near
the surface, and at a greater depth the
dip varies within these limits. The vein
is also very Irregular in size, and so faint
ly outlined through the country rock as
to be difficult to follow. This is not un
expected, for the evidences of movement
along the vein are more distinct in this
mine than In any other in Bohemia. On
level No 2 the thickness of the vein
ranges usually from 0 to 4 feet, with a
.rare maximum of 6 feet. It averages per
haps about 3 feet.
The ore is of the same character as that
of the Musick and Champion mines. Near
the surface it is completely oxidized, and
the softened quartzose mass is deeply
stained by iron oxide. The ore above level
No. 1 has been removed, excepting near
the western end. It contains no visible
sulphides. The foot wall is smooth and
sllckenslded, and the vein matter is in
part brecciated, as if by faulting, but
there is much banding, with more or
less distinct comb structure of later
origin. In the tunnel leading to level No.
2 there is a small vein In line with prom
inent sllckensides on the road, and the
vein strikes east and west. Towards the
west, on level No. 2, the large vein which
Is mined narrows and finally pinches out.
Bllckcnsldes are common. Faulting has
undoubtedly played -an important role in
the history of the vein. The fault plane
runs east and west, and the strlations
upon it dip 20 degrees east Just the re
verse of those seen on the road near the
mine. Another small slipping plane in the
came part of the mine runs nearly north
and south, and its strlations dip towards
the south.
At level No. S the amount of drift has
been greatest. The tunnel entering at
this level reaches first a small vein,
which is followed for about 500 feet be
fore cross-cutting to find the principal
vein upon which the upper levels aie
located. Near the northern end of the
cross-cut, between the two veins, which
ere about 120 feet apart, there is a small
mass especially rich in pyrite. Farther
oast, on a drift from the same cross
cut, there is a bit of ore, chiefly quartz,
in which there is some galena, pyrite and
chalcopyrlte. Cavities lined with small
crystals of quartz are more common at
this level than higher up, and at times
they are coated on one side by pyrite.
The first vein reached by the tunnel to
the third level Is well exposed at the
western end of the drift. It is whitish.
raincr soil ana lurr-iiKe, iias a wiuin j
oi aoout two ana one-nair lect, ana
stands vertical, with a strike of north i2
degrees west.
The Noonday Is owned by the Noonday
Mining Company, of Chicago. Dis'cord.
In the corporation is believed to be the
cause of the almost total suspension of
work in the past four years. Litigation
has also played Its part. The mill site,
stamp mill, tramway and so much land
as the tramway requires will be sold
at SherlfTs sale at Rosc-burg, August 11,
to satisfy judgments for about t&QOO held
by J. Frank Watson and others. Not
withstanding the confusion of Its af
fairs, the company has posted notices
of intention to apply for patents for
seven claims. This is taken to indicate
that an effort Is being made at reorgan
ization which will shortly be followed Dy
the resumption of work.
Riverside Gronp.
J. W. Cook, of Cottage Grove, is pres
ident of the Riverside Gold Mining Com
pany, which owns a group of seen
claims on Horssheaven Crock heading
into Grouse Mountain. Vory nearly
enough work has beon done on the group
to entitle the owners to a patent. The
oro runs high in gold.
O. P. Adams' Claims.
The Ophir group, comprising two
claims, the Ophir, the Royal and a frac
ticn. Is on the same lead as the Musick.
O. P. Adams has opened two tunnels
on the Ophir, the upper of which Is in S4
feet and the lower 10 feet. This claim has
two veins, one five feet wide and the
other three feet, with eight feet of coun
try rock between. The smaller vein is
below the larger. Considerable pyrite is
mixed with the quartz. The region has
suffered much from erosion, and the
sulphides come near the surface. Assays
made from the poorer rock In the Ophir
showed from $4 to $10 in gold, a little
silver and a trace of copper.
Mr. Adams is an old-timer in the Bo
hemia country and did placer work with
Lyle Miller and Frank Buoy on Sharp
Creek in 1859. Forty-one years ago he
ascended Fairview Mountain and con
cluded from the formation of the country
that there was an abundance of quartz.
He was looking for placer ground then,
and did not set his stakes for quartz.
In 1E91 he returned to the camp and took
up tho Ophir group.
Bis: Copper Property.
"WWle many locations show rich values
in copper, the most promising from the
point of richness and extent of ore is the
property of the St. Helens Mining Com
pany, composed of Dan Byrne, Fred
Byrne, Al Johnson, J. C. Klofenstein,
Henry Johnson and Gill Meadows. G. J.
Byrne, father of the Byrne boys, is a
London broker, and has succeeded in get
ting an English syndicate to bond the
property. The amount of the bond nas
not been announced, but Is generally
supposed to be $05,000.
The company owns seven claims at the
western base of Grizzly Mountain, at the
Junction of Grizzly and Champion Creeks.
Tho claims are: Golden Fleece, Stand
ard, North Star, Spokane. Grizzly, Olym
pia and Gem. The development now
under way opens the Golden Fleece,
North Star, Olympla and Gem. On the
others only the legal assessment work
is being done. The. tunnel in the Golden
Fleece has been driven 235 feet. It ib
eight feet wide, and the ledge is the
same width. Seven hundred feet west of
.. the tunnel is a prospect shaft 12 feet
deep, from which ore of the same char
acter as that found in the tunnel has
been taken.
An assay of ore taken from the Golden
Fleece showed the following values per
ton: Gold, $143 50; copper. $72 05; silver.
$21 69: leed. $14 S5: total. $247 54. It should
be stated that this result was obtained
when the tunnel waB in 55 feet and in
the richest streak of ore yet uncovered.
The average of the ledge, on a smelter
teat made at Tacoma Is between 7 and
S3 .gold and 9 pct cent cooper.
The Byrne boys, who hav mined In
Colorado and British Columbia, say the
surface showings in Bohemia surnass
anything they have ever seen. They
tWnk. with everyone else, that when
tho free gold runs out, enormous bodies
of base oro carryiror gold and cooper will
be encountered, with copper predominat
ing:. Tbo Oregon-Colorado Mining, Milling & J
Development Company's group occupies
tho Noonday spur of Grouso Mountain
near where St. Peters, City and Grouse
Creeks unite to form Steamboat Creek.
Taere are seven claims Confidence, Wat
son, Dewey. Marie, Sampson, Dora,
Schley and a fraction of Holy Smoke. The
company has completed the survey and
will apply for United States patents.
The surface showing on tho group is ex
ceptionally strong. A fine i.ssure vein
can be distinctly traced more than the
length of one claim. W. W. Glbbs, a.
practical mining roan and as&ayer, passed
oer the lead and gathered a number
of samples In a length of 800 feet. From
these ho made one assay which showed,
per ton, gold, $3 20; silver, $6 72; copper,
$17 GO; total, $27 52. The ore is very pure
cholo-pyrlte without zinc or arsenic, and
shows considerable specular hematite,
and resembles large copper and gold ore
bodies which Mr. Glbbs has examined in
British Columbia. The ledges on these
claims are from five to 40 feet wide.
There is one 400-foot tunnel and sev
eral shorter cuts. A contract has been
let to Oliver Gllbertson for a cross-cut
tunnel 150 feet, where the main ledge will
be cut at a great depth, and drifting
and raising will follow. F. J. Hard was
secretary and manager of the company,
and owns large interests in it, but ow
ing to his connection with the Oregon
Mining Stock Exchange, he has resigned
those positions. F. W. Bromlev. a San
Juan, Colo., mining man. is on the prop
erty and in charge. Mr. Bromley says
it Is goin? to make a big roino.
George H. Stone savs of this gmup of
claims: "The veins are large and well
dinned. TTv can be traced over high
ridges, which proves thev occmpv deep
fissures, like all longer veins of the dis
trict." John S. MMIey. attornev t Cottrr-p
Grove, savs he has examined the t!M
to the cHIms owned by the Oreron-Onl-orado
Mlnlnir, MUlinr "Development
Comnony and f nds the Tossesnrv title
thereto good, and that tho, article of
incorporation of the wninmv nd It or
ganization are and hav hpn d"n -mn.
er'v and under the laws of the State
of Orejtui.
Profopsor T'llnr plltidep tr, tv.j c-mnn
Of rlfS In Us rono-f f ''""'tor
nf the United PfMes Genle-W 5tirv".
Ho savs a seleeted mTnnle frro th
fpr of the own'nr fiber's nvrf -til
chalrn-pvrite In eonidemb'e nunnlli.
and by asrav one ounce in gold and 30
ounces si'vr.
Huns Hlgli in Lend.
On the left bank of City Orek. north
of the Mystery, is the Wall Street
claim. Nearly opposite the sawmill Is a
ledge which strikes north 75 degrees west
and dips 85 degrees southwest. It is
about five feet wide, and the oro is iron
stained quartz, with some partly altered
galena. In the course of a tunnel run
ning a little east of north, approximate
ly at right angles to the strike of the
veins in that portion of the Held, but
upon the surface. Is a small vein, rang
ing from ono to 18 inches in a length
of three feet. Being rich In galena, it
is called Galena Spur. It contains also
much sphalerite and red hematite, with
some pyrlto and chalco-pyrlte. as well as
much llmonlte and nests of quartz crys
tals. The course of this little vein, seen
for only a few yards, is north eight de
grees east and it is probably an offshoot
from ono of the larger veins. The ore
from this vein assays 2 ounces gold
and 16.65 ounces of silver per ton. 3 K per
cent zinc and 53.80 per cent of lead.
BrondTFtty Group.
The Broadway group of tnree claims,
owned by J. W. Itced and "William urli
ntn, lies on the divide at the western
end of the Champion, nearly a mile di
rectly east of the Musick. Over Stt) feet
of tunneling, cross-cutting and drifting
has been done on the Broadway. As the
Champion ledge runs through the claim,
the richest ore Is believed to be near
the Champion. The vein on the Broad
way is about five feet wide and composed
of rather quartzose material, which is
not deeply colored by oxide of Iron, as
is usually the case so near the surface.
Small crystals of pyrito are scattered
through the adjacent country rock at
some points along the north side of tho
drift, but are riot abundant in the ex
posed part of the vein. Assays have gone
as high as $174 gold to the ton.
fSff- ' ' ' ' . v s . . - -- vv- j. r , cVi-,i yeses; $F' - - . -( v v &JiOv?'', -r-m&'
Below the Broadway about 250 feet,
upon tho northern slope, is a second tun
nel, 100 feet In length. At Its mouth is
the ledge of the Diamond claim. There
are two ridges on the Diamond of the j
same formation as that seen in the
Knott. The rock pans nicely, and It is
believed from the results obtained that
it ought to go at least $20 gold to the
ton. Two ledges, one five feet wide and
the other 24 feet wide, have been defined
in the Diamond.
Still lower down the slope is the Frank
Brass claim, whero a 100-foot tunnel
penetrates tuff containing little nodules
of pjTito to reach a small vein. The
ore of this vein is chlofiy quarts, with
some kaolin and oxide of iron on the
outside, and a small amount of sulphides
within. No ledge has been cut on the
Frank Brass as yet. but Mr. Griffith be
lieves there is a five-foot ledge on the
claim.
It Is probable that the Broadway group
will be incorporated and stocked before
Ion?.
3Ionto Rico Country.
Three miles southwest of the Musick is
MlWiP iW
the Monto Rico country. A large number
of locations have been made in this sec
tion. The most prominent is the Henry
Cloy group of five, owned by Charles
Clay, C. A. Whale and A. T. Gilbert.
Three hundred feet of tunnel has been
opened. The upper tunnel runs through
or carrying gold, copper -and lead, from
which assays ranging from ?12 to $122 in
gold have been obtained. Surface Took
has assayed as high as 15 per cent cop
per. The formation of the country per
mits of deep mining. A tunnsl 3003 feet
long will give a depth of 1SO0 feet.
Vesuvius Gronp.
On the southern slope of Fairview Peak,
a few hundred yards northeast of the Mu
stek mine, Is the Vesuvius group. At the
upper opening of this property are two
veins of porous quartz, deeply stained and
permeated by oxide of iron. A little
lower down on tho Sharp Creek slope of
Fairview another tunnel reaches a vein
of iron-stained porous quartz. This vein
JbjLatham . v
-draim " : V "--rN? w b ' P 5
fi n U: X .. : . -V., f y ' . g
H COZP r- 7 ?y
dips southwest, and overlies the vein on
the southern slope by about 30 feat. The
Vesuvius group Is owned by Alb-rt Zlnl
ker and Grab-r Bros. The claims are th
Vesuvius, German, Wild Hog, Willi-m
Tell, Hillside and NIghtlnrale. Between
500 and 600 feet of tunnel has ben opened
oh the German: 90 feet on the Vesuvius,
and 40 feet each on the Wild Hog and
William Tell. The ore carries high, values
In free-milling gold, and a five-stamp mill
wl I be in operation before another Sum
mer goes by.
Harlow Stock3 and Brush adjoin the
I x-;
Vesuvius group on the north, with five
culms, on which there has been consid
erable development. The ore Is free-milling,
and runs between $70 and $S0 In gold
to tho ton. There is a custom five-stamp
mill on the group. i
The Golden Slipper. 1
East of Fairview Mountain, about the
head of the western branch of Champion
Creek, Is a small group of claims, of
BOHE3IZA DISTRICT FROM FAIRVIEW LOOKING OVER GROUSE 3IOUNTAIX THREE SISTERS I.N DISTANCE.
which the Golden Slipper has been most
extenshely prospected. The exposed vein
is small and the rock is considerably
Jointed. The strike is north, CO degrees
west, and the dip SO drgrees southwest.
The ore is yellow stained quartz rock,
containing considerable sphalerite and ga
lena, with some pyrite and chalcopyrlte
The porous quartz contains many cavi
ties lined with little quartz crystals.
Northwest of the Golden Slipper, upon
the lower slopes of rairvlew, is an open
ing, possibly upon the same vein, and to
the southeast there are several openings,
made chiefly by the owners of the Broad
way. Assays of the Golden Slipper rock net
free gold and make a good showing in
copper. Recently a contract for 100 feet
of tunneling was awarded.
Copper and Gold.
It is conceded E. L. Haff will open
a No. 1 copper and gold mine in his
property adjoining the St. Holens claims
on Champion Creek. He bought the
claim from Charles T. Mitchell for $7v.O
last Winter. Two assays made when
Mr. Mitchell owned the property gave
BOHEJtlA
$2S and $54 respectively, in free gold.
The ledge is 10 feet wide. Mr. Haff is
working In earnest and expects to patent
the claim before snow comes.
"Tom" Johnnon'a Tip Top. I
On the southeast slope of -Fairview,
lying partly in Lane county and partly J
In Douglas County, Is the Tin Ton. ownd '
by A. E. ("Tom") Johnson. It was orig
inally located as the Anaconda and wis
until recently known as the Story. Not
withstanding that the property is in
volved in litigation, Tom Js working like
the proverbial beaver, confident that he
T-lll win out. The upper tunnel I- in 85
feet and the lower one 20ft feet. A shaft
being sunk to connect with the upper
tunnel is down 40 feet. Rich pockets
occur with a good a'verage for the rest of
the ledge From a strip 10 inches wide
ore that rated up to $$000 a ton was
taken. One lot of 61Vi pounds of rock
yielded $273, and another of 70 pounds,
$255.
MAP SHOWING THE REI.A1IOX Or THE BOHEMIA DISTRICT TO OAKLAND AKD COTTAGE GROVE.
On the northwest c'ope of Talrvlow
are flv claims owned by R, McMur
phcy. B. E. Hawley and others They
have done about) 200 feot of develop- '
ment. j
On the enrt side of Fairview. John Pet-
erson has three claims on which he has
opened 110 feet of tunnel. His a-ayj ;
show from $10 to $70 a ton In free gold, j
Adte'nlng the Peterson property are I
the Sunrise and Sunrise fraction, owned I
by Charles F. Mitchell. Mr. Mitchrll
has oponed a tunnel for a length of 30
feet and made three cuts, each of 20
feet, on t:e ledge. A-says run from $3
to TcO. Tre rock shows free gold to the I
naKcu eye.
Elephant and Adnms .MonntnliiN.
G. W. Long has a claim on. Elephant
Mountain upon which he built a two j
stamp mill two years ago. Improvements .
made. Including tunneling, ha e cost
$12). One tunnel has been driven 30
feet, another between 70 and SO feet, and
there are two shafts, each 25 feet deep.
The ore mills about $10 to the ton in
frff irold. "PVaa rAV nrwl Viaca TAnlr nnr-
rylng free gold, are run through the m'll !
and tne concentrates saved. If the ore
bodies to be opened up continue to be
as good as what has be-on uncovered.
Mr. Long will erect a lirger mill.
B. T. Curry has four claims on Adims
Mountain. Thej are the Spotted Fawn,
San Diego, Santa Rosa and St. Paul. Free
gold Is found In the Santa Rosa and thi
St. Paul.
E. S. Lovelace is president and Frank
Jordan secrotarv of the Adams Moun
tain Mining Company, which owns svcn
claims on the southeast slope of Adams
Mountain. They are working Plght men
and pushing development with the object
of patenting their claims' as early as
possible. About 200 feet of tunnel has
been opened.
Jonks & HIckey have threo claims on
the ridge between Elephant and Adams
Mountains. Thcv have driven a 40
foot tunnel. Assays from $10 to $15 rold. i
On Elephant Mountain. Charlea Geddes.
George Knowles and William Brunn own
PEAK. LOOKIItG SOUTHEAST BOHEMIA
three claims, on which" they have done
500 feet of tunneling. Assays range from
$S to $G0 in gold.
Alexander Pugh has opened a tunnel
00 feet long on his group of five claims
on Elephant Mountain. The ore is free
milling and assays from $40 to $G0 per
ton.
Tile MayfloTvcr.
The Mayflower group, about one and
one-half miles east of the Helena, on
Horseheaven Creek, 13 owned by a cor
poration of which W. P. Ely is secretary
and treasurer. Both free and base rock
are found. Base rock taken from a 150
foot tunnel runs from $20 to $00 per ton
In gold and silver. At last reports tho
company had done much on Its free mill
ing lead, but the rock from It ap
peared to be richer than the base ore
that was being worked. Between 500
and COO feet of tunneling has been done
on the group. The company Is arrang
ing to put up a nve-stamp mill, which
will net be costly to or-erate. because of
the excellent water power and abundant
wood supply.
Other Properties.
The Montana Gold Mining Company,
generally known as the Rccd & Fletcher
properties, has several claims west of the
Helena. The upper tunnel Is In 2T.0 fet.
the second 110 feet, and the lower 220
feet. Reed & Fletcher have passed
through much good ore. running high In
free gold. Thry arc systematically devel
oping their property and familiarizing
themselves with the rock before ordering
equipment.
J. I. Jones, of Cottage Grove, has a
group two miles northeast of the Helena,
between the headwaters of Steamboat
Creek and the north fork of the Wil
lamette, known as the Winchester group.
Besides good value in gold, there is a
small streak of galena ore running 5S per
cent lend.
The Mineral King group on Horse-
heaven Creek, three miles from the Hele
na, Is owned by Albert Land and Albert
Zlneker. The owners have tunneled 223
feet and found ore assaying $154 In free
gold and $200 In silver to the ton. It Is
reported that Turley. a Cripple Creek
miner, will bond the group for $15,000.
Ore from the Hall & Houston claim on
the south side of Bohemia carries as
high as ?C0 In free gold. A tunnel 90
feet long has been opned.
Frank Sllshcr and Mr. Raslpuz have
two claims on the southeast slope of
Bohemia. Development consists of a 2
foot tunnel and two surface cuts. As
says average from $10 to $20 gold per ton.
Frank Hughes and Hugh Bartlett have
been working for seeral years on tlhreo
claims on Martin Creek. Over 200 feet of
tunnel work has been done. Some of tho
assays showed 40 In free gold.
The Seattle Mining Company Is d-'eIop-Ing
claims at G.cnwood. on the wcst 5'de
of Bohemia Mountain. Assays a-.erage
about $50 per ton free gold.
George W. Lloyd, formerly of Cripple
Creek, has four claims on the northwest
slop- of Bohemia. Mr. Lloyd has awarded
DISTRICT.
contracts to do all necessary work on his
claims and will apply for patents this
year. Ho is a practical miner and min
ing engineer.
Three-quarters of a mile north of Mu
stek. Carl Coates has three claims on
which he has opened a 40-foot tunnel.
The ore assays from $12 to $13 in free
gold.
White & Wiggins are opening five
promising claims on Champion Creek
trail, two miles from the Mustek. They
hae opened a tunnel CO feet long from
which free mlllng ore. ranging from $15
to $30. has been taken.
The Klondike, owned Iby Charles F.
Mitchell and E. E. Lilly. Is on the west
side of Bohemia Peak near the Mustek.
A 20-foot cut on the ledge exposed rock
that assayed $12 in free gold.
Stone Bros., E. Johnson, R. Rhodey and
O. O. Lund, constituting the Minneapo
lis Mining Company, are developing
tnrco claims adjoining the Klondike.
They have 15 feet of tunneling, 10 feet of
shaft and about 40 feet of surface cut
ting. Assays average from $12 to $40
free gold.
Adjoining the Minneapolis Company on
the south side of Bohemia is the White
Swan group of four claims, owned by
Professor Snapp, of Eugene, and associ
ates. Assays run from $8 to $00 in gold.
Assays of ore from a claim owned by
William Edwards, which ' adjoins the
White Swan, range from ?S to $110 In free
gold. Mr. Edwards has opened a 25-foot
tunrel.
A. Plnor located a claim on the east
side of Jackass Ridge last yeir. An as
say showed ?20 per ton in free gold.
Andrew- Nelson his driven two li-foot
tunnels on his claim on the west side of
Jackals Ridge. One opened a pocket con
taining between $300 and $400 In gold.
O. G. Gllbertson and Walter Cochran
have four claims on Jackass Ridge the
Stratton, the Cripple Creek, the Oliver
Twist and the Lost Claim. Assai3 show
from $10 to $20 per ton free- gold.
The east extension of Ely's Excelsior,
adjoining the Bohemia and the Noonday,
Is owned by G. W. Long and Miss Ros
Wllltams. About ISO fet of tunneling,
costing $1330, has been done. Good ore,
carrying free gold, his been found.
Mrs E. A. Stephens, of Bohemia, owns
the larger interest in the Holy Smoke
claim on the east side of Grouse Moun
tain, odjoln'ng the Oregon-Colorado
group. The ore assajs 8 per cent copper,
with values In gold and silver. About
40 feet of tunnel work has been done.
The Eugene Mining Company has five
claims on Grouse Mountain R'dge. Only
assessment work has been done.
James Dmal has two claims on the
west side of Jackass RIdare Develop
ment consists of four open cuts and
one 20-fcot turncl. Assays give from $10
to $25 In free gold
Other properties that are showing up
well are- The Bohemia Mining Mill
ing Compinj's gronp on Grouse Moun
tain : the Belcher Mining & Milling Com
pany's cla'ms on the north fork of Horse-
heaven Creek; the Wall Street, managed
by I. G. Davidson, of Portland: the Belle
of Fairview, owned by Alfred Walker;
the Grouse Mountain Gold Mining &
Milling Company's group on Grouse
Mountain; the Joseph Young group; the
Farmer, owned by Felix and John Currln,
on which wire gold an inch long has
been found; the Syndicate, owned by
Lockwood, Jenks, Colton & Patterson:
the Traveler, owned by Morgan. Reed
& Nunn; Napance group, owned by
Sehr, Cummings & Masterson; the Lau
ra, owned by Leroy Bros.; the Baltimore
and Orphan Boy, owned by Ed Jenks:
Lucky Boy and Lurch, owned by B.
Lurch; the Monarch group; and tho Con
tention claim, owned by F. J. Hard and
James DuvaL
Geology of Bohemia.
The geology of Bohemia district has
received attention from J. S. Diller, of
the United States Geological Survey;
Paul Baumel, the Portland assayer, and
George H. Stone, ex-professor of geolo
gy In Colorado College. All agree that
the district Is of volcanic origin and
that its rocks are andeslte, mixed with
porphyry. Professor Stone says:
"This is a volcanic district. The vol
canic masses take the form of a
crooked main ridge, with subordinate
ridges branching In opposite directions,
and the latter In some cases subdivide.
Numerous peaks rise out of and above
tho other parts of the ridges. The larger
of these are dikes pushed up through
the adjoining parts, and therefore of
later age. The lateral slopes of the
ridges are steep and often precipitous.
In many places the solid lava is covered
with a sheet of bressia up to 60 feet in
thickness. The scorlaceous layer of lava
which formed the original surface of
cooling is still found covering a large
part of the surface. This proves that
erosion has not greatly modified the con
tour of the country since the close of the
active volcanic period.
"The rocks of the region are dark
bluish and greenish andesites, varying
In mlneraloglcal structure from fine
grained to coarse porphyritlc, and are of
ten hornblendlc When the country rock
is decomposed, a3 it usually is along tho
side of the veins, it Is bleached to a
grayish or brownish color, modified by
a staining of iron, and Is locally known
as porphyry.
"The volcanic ridges are cut by a series
of nearly parallel veins, with some cross
veins Most of the veins can be traced
from half a mile up to three miles over
high ridges and across deep valleys, prov
ing that the veins occupy deep fissures.
The values occur mainly In chutes carry
ing free gold, pyrite, chalcopyrlte, galena,
some zinc and probably some other sul
phides and sulphates. The ores and vein
matter consist largely of coatings, im
pregnations and replacements of the coun
try rock, as at Cripple Creek and many
other places. The gangue consists of
quartz with small quantities of heavy
spar and a few other minerals. Down to
the bottom of the deepest workings the re
placemnt of the country rock by ores
and gangue Is more and more complete.
"The mineralization of this camp dates
from a late geological period, like that of
Cripple Creek, the San Juan region of
Colorado, and much of British Columbia.
"The andesites have In many places
been found to contain many of the larg
est and richest mineral deposits. The kind
of rock of Bohemia, also the way they
occur, as massive dikes rather than as
diffused flows, and the large size and evi
dent great depth of the veins, are all
favorable geological indications of miner
alization." In an address delivered before the Mlne
owners' Club at Portland last .March,
Mr Baumel 3ald:
"In the rear future the Bohemia mining
district will be another Cripple Creek. The
district Is of volcanic origin, with ande
slte and porphyry formation, covered
with a heally mineralized breccia and
decomposed bleached lava. It has long
been conceded that fissure veins penetrat
ing igpeous rock, porphyry, lava, etc.,,
especially the andesites, have koften
proved to contain the largest and richest
mineral deposits."
Government Investigations.
Mr. Diller made a reconnolssance of the
district in the Summer of lS9b. He says
the Calapooias. throughout their whole
extent, ar- composed of lavas like those
of the Cascade Range. They are ar
ranged in sheets radiating from the vol
canoes wnence tiiey came, and are piled
up to a great thickness. The walls of tho
canoi a.ong tne miud!e lork of the Wil
lamette towards Its tource Illustrate this
feature at a number of points, and It
may be seen also in the summits of some
of the moro prominent peaks. Generally
the sheets of lai a are very irregular and
no narailel arrangement on a large scale
Is visible. The Iav.i Uiing the throat of
a once active volcano may make a prom
inent peak, t.s In cougar Rock, or may
stand on erd with conjplcuous columnar
structure, as In Bear Bon's Rok, a short
distance east of the Bohewila Mining dis
trict. The region has loat much by ero
sion. Its streams have carried the ma
terial away t nd cut deep. ,n.irrow valleys,
almost narrow enough to be called can
yons. They expose ro'ks to a depth of
over 2000 feet mvas, eln matter, and
stratified fragmental volcanic material,
j The conpo Itlon and structure of Bo
hemia region arc es?nt'aPy those of the
I Calapoolti Mountains as a whole. Upon the
l northern slope of the divide within the
district, the leva sheet 3 incline north
ward, and upon the opposite side they
incline southward, apparently; but in
Grouse Mountain, as w eU aa along a part
of the upper cburse 6f Horseheaven
Creek. tht.y swing around and dip east
ward, as if they emanated, from a vol
canic center abojt the htad of City Creek.
Such may have been the cane, but the
distribution of the fragtnental volcanic
material. Mr. Diller thinks, Is opposed to
this icw. It I? possible that this diver
gent dip Is due to uplifting by mountaln
buJWmg forces.
The age of the Calapoola Mountains has
not heen positively determined, because
no fossils have yet been found in the
fossils of wr.ich It Is composed; It is
supposed, however, that being a spur of
the Cascade Range, and being composed
of similar volcanic rock. It is of essen
tially the same ae. As to the age of
the Cascade Range, evidence Is found in
the plant remains tnat the tuffs on the
Columbia River, near tho middle of tho
range, and on Coul Creek, near the sum
mit of the range In Lane County, as well
as the sandstone upon the western slope"
of the range near Ashland, are of Mio
cene Rnnge. The stratified tuffs contain
ing the fossil plants were evidently laid
down in lakes developed among the
lava flows, and show that during the
Miocene there was extensive volcanic ac
tivity in the Cascade Range. Evidence
of earlier igneous eruptions has not been
observed in the Cascade Range, but from
the records of volcanic action found in
the Eocene of the Coast Range at a num
ber of points, and also at points between
the Coast and Cascade Ranges, it is sus
pected that the volcanoes of the Cascades
may have been active In Eocene time.
The same may be true also of the vol
canoes in which much ot the lavas of the
Calapoola Mountains originated.
Coal Creek, about 50 miles east of Oak
land, Is a branch upon the south side of
the middle fork of the Willamette, near
Its head. In the western slop of tho
Cascades. It Is about 20 miles southeast
of Bohemia district, and lies In a de
pression between the Bohemia Mountains
and the crest of the Cascades.
The middle fork of the Willamette cuts
a deep and narrow canyon-like valley in
the western slope of the Cascade Range.
Much of its course Is bordered by a
small flood plain. Occasional ledges of
rock appear In the stream bed, but gen
erally the bed Is o coarse gravel, pro
tecting the underlying rock from stream
cutting. Upon the slopes, In places, it
least 2000 feet of nearly horizontal sheets
of lava and beds of fragmen,tal volcanlo
material aro well exposed. The bottom
beds, wherever seen, are Igneous. Tho
most common form just below the mouth,
of Coal Creek is diabase, very closely re-
1
(Concluded on Ninth Pase.).