[page 3]
(1166
TABLE OF CONTENTS.
CHAPTER I.
_ Preliminary Statement.
Personnel of Party.
Object of Survey.
Location of District..
History of Jasper.
Climate.
CHAPTER II.
Surveying and Mapping.
Topographicdl Methods.
Procedure.
CHAPTER III.
Geology.
Enrichment of sulphide ores by Emmons.
Andesite.
Diorite.
Diorite porphyry.
Rhyolite.
Basalt.
Glaciation.
Landslides.
Alluvium.
CHAPTER IV.
Mines and Mills.
Perry Mine.
Miser Mine.
Guadaloupe Mine.
—~r-v45

[page 5]
GEOLOGY OF THE JASPER DISTRICT IN COLORADO.
CHAPTER I. INTRODUCTION. —
PRELIMINARY STATEMENT.
This thesis treats of a portion of the work of the Colo.
Geol. Survey under the supervision of Dr. Patton of the Colo.
School of Mines. Every summer Dr. Patton has charge of one of
the parties of the Colo. Geol. Survey and makes a study of an
area which has never been mapped,and thoroughly studied. This
especial summer it was his pleasure to make a study of the
Platora district which included the towns of Platora, Summitville,
Gilmore, Stunner & Jasper. This should be of special interest
to everybody, because a rush was in progress at the time,and a
good many prospects were being located. The interest in the
district was due to the discovery of gold at grass roots near
the town of Gilmore. Mr Gilmore,whom the town was named after
was the discoverer.
PERSONNEL OF PARTY.
The party consisted of H.B.Patton and thirteen students
of the Colo. School of Mines
OBJECT OF SURVEY.
The object of the survey is to survey and ascertain useful
information of the geology and mining conditions of a little
known portion of Colo. and to present the information in such
form as to be useful in the development of that region.
LOCATION OF DISTRICT.
The entire district surveyed is situated in the S.W.
portion of Rio Grande Co. and in the N.W. portion of Conejos Co.
It lies between the towns of Summitville on the N,Jasper on
the Fast,and Platora on the South.
The district which is discussed in this thesis lies

[page 6]
Nose on
Glacial Grooves
below

[page 7]
a
between the towns of Summitville on the North,Jasper on the
East,and Stunner on the West. It's area is about twelve square
miles. The latitude of Jasper is Thirty seven degrees-twenty
five minutes North,and it's longitude is One hundred and six
degrees and twenty seven minutes West.
The Denver & Rio Grande Railroad may be reached at Monta
Vista. This place is thirty-four miles by road from Jasper.
There is a short cut from Jasper to Del Norte,which is said to
be only twenty five miles. It is merely a trail at present
climbing over the high mountains North of Jasper,but at one
time it was said to have been a good wagon road. Between Jasper
and Stunner is a narrow,sharply walled eanyon,which contains
the Alamosa River and a good mountain road. Summitville is
located in Wightmen's Fork which empties into the Alamosa,about
half way between Stunner and Jasper,that being four miles each
way. A new road is being built thru this country by the county;
It takes in the old road wherever feasible,and is being pushed
ahead as rapidly as possible. It is thought that the state
highway will pass thru here, which should be a big boost for
this country. At present the new road is built as far as Wight-
man's Fork toward Stunner,but it has been surveyed far above
this. Automobiles will find this a very good road,as it has
been built with a good average grade all the way. Between this
road and Summitville and running along parallel to Wightman's
Fork is an old wagon road,which extends into Summitville. It
is now impassible to wagons, but it makes a very good trail,
except in two places o07 the way up to Summitville.
HISTORY OF JASPER.
Jasper was founded in 1874-1875 about the same time that
ore was discovered in Summitville. The town,part of which still
exWists.was started,and prospecting commenced at this time.

[page 8]
Grater Lane
oC

[page 9]
Se
The Perry Mine was the first to be located. It was dis-
covered by Andrew Jonnson,whose first pardner was Alve Adams.
@.G. Galkins and Pasecall Craig were later taken in as pardners
with the afore mentioned. Another man,Frank Moody also became
interested in Jasper and formed the Jasper Townsite Company.
Most of the territory around Jasper is still owned by these men,
their mimes including the Perry and Guadaloupe. The Cornwall
“Mining Co is the name of their company. The Miser Mine,the only
other mine of interest is owned by Frank Moody,Dr. Ross,
G.W. Balentine and John Gabriel,all of whom are Denver men.
Above Jasper,about two and one-half miles, there isa
group of old buildings and old workings called the Sanger Mine.
The original entrees on this property claimed to have a mountain
of "Birdseye Porphyry" here,which had an average value of $10.00
This proved to be a big swindle,and after getting all the .
"suckers" money they could,they ceased working the property. The
ruins of an old mill are also to be seen here. This had a big
tendency toward the ruination of Jasper and ever since that
event,it has been hard to get money +o open up any new workings.
The mountain of porphyry can easily be seen,but it assays only
a portion, (fraction) of a reported to run. This story
of the swindle is all hearsay,but it can be readily believed
from a look at the mine and the mill.
CLIMATE. .
The climate in this district is about the same as in
any mountain district in Colo. In sumer there is usually a
rainy season of about six weeks. This particular summer was an
exception however,which only goes to prove the rule. Snow is
on the ground for about seven months in the winter.
SURVEYING AND MAPPING.
eo =

[page 10]
a,
The first problem was to establish our elevation,and
place suitable bench marks for triangulation purposes. The U.S.
G.S. have made a traverse thru: this region and established
bench marks on different peaks. We took their results and thus
Bad our first elavation on North Mountain,North of Summitville.
We next established our own bench marks for triangulation.
Two points plainly visible from one another and about 4000' apart
were measured very carefully by chain. Six or seven chainings
were necessary for all our work depended on this. After being
established,the elevation of either end was taken from our
Jnown elevation on North Mountain. From these two points we
located and secured elevation of all points in sight,then from
these points additional points were located until finally the
entire district was covered.
Several traverses were also made;one from Summitville
down Wightman's Fork to the Alamosa;énd. From Camp near Summit—
ville around Lookout Mountain to Stunner; 3d. From Stunner to
Platora; 4th. From Stunner down Alamosa to Jasper,and connecting
the Summitville Wightman Fork Survey.
TOPOGRAPHICAL METHODS.
Instruments used:-
(1) A small plane table about 10" x 16",which was mounted
on a tripod from a camera. It was very light and easy to carry,
and was covered with an oil cloth.
(2) A parometer,for determining elevations.
(3): A hand level,clinometer,compass,straight edge,ecale,
and prothastor;ail on the same instrument.
(4) A prospector's pick and flags.
(5) A telemeter for getting distances.

[page 11]
PROC ERDURE.
In triangulation,flags were placed on all the easily
distinguishable points so that in nearly all the district,
at least one flag could be seen. Of course in dense growth of
trees on parts of hills and in a few other places,these flags
could not be seen,but in general they could be seen from every-
where.
The first problem was to draw contours,or lines of equal
elevation,all over the district. The scale used was 2000' to
the inch,and contour lines were drawn every 100: pefore leaving
camp,all the triangulation points were placed on the sheet of
tracing cloth,which was to be the map,and also all the traverses
were plotted correetly to scale on it. In one corner of the map
the distance between contours for a (5-10-15-20-25-30-35) degree
slope were computed and drawn.
If working along one of the traverses the following pro-
ee¢dure would be followed: The table would be set up at each
point (if not te sieee together) and made level with the level
bubble on the instrument. Next it would be oriented. By that
is meant the process of plaging the table in a true N and $
f position. The method used in this case would be to place the
straight edge so that it lie along the line of this station and
the previous station. The table would then be allowed to swing
around until by glancing along the straight edge the preceeding
station could be seen,and then the table would be clamped. To
cheek this we could set the straight edge on the line of this
station and the next station,and see if by glancing along the
edge we could see the next station. Or if a triangulation station
was in sight we could place the straight edge on this new line
and see if we could see the triangulation station. The compass
should give us a rough check also,and if there are no disturbing

[page 12]
6.
elements will read 14 degrees, 50iminutes,tosthe right of true
North. Having gotten one table oriented we start to draw our
eontours. The elevation of the point we are at is known being
a traverse point,and therefore we know whether the eontours
will pass above or below the station,and also about where. Work-
ing up or down to the contours as the case may be with a hand
level we can place ourselves digectly on the contours,and we
can place a dot approximately on our map where this spot is.
If too far away from the table,pacing may have to be resorted
to,to get this distance from the table. Now while at this point
we take sights with the hand level at two points at our level
and with the compass get their bearings. The distance to these
points we either approximate or paee,or use a telemeter to
determine,according to how skillful we think we are in judging
distances. Now going back ta the map,we can place dots on these
two points. Between these three points of equal elevation a
contour line is drawn,the way it runs between these two points
being determined by the eye,which takes account of the general
lay of the ground.
To orient at one of the triangulation putts about the
same procegdure was used as before,and what contours that could
be drawn were mapped.
To orient at an unknown spot a different process had to
be followed.
(1) When two known points as triangulation points are visible.
Orient table as best you can by means of the compass. Now with
straight edge sighting towards one point,draw line from this
point towards where you are sitting. Do the same with the other
point. The intersection between these two lines will be the
point you are set on.

[page 13]
Te
(2) When three points are visible you can use the three
point problem which consists: of drawing from each of these
three points a line on a piece of tracing cloth on top of your
map. Now with the tracing cloth on top of your map revolve it
until each line comes under the point it was drawn from. The
intersection of the three lines will be the point you are at
and by précking thru the tracing cloth you have the point you
are at.
(3) When only one point can be seen you can orient with a
compass and judge your distance from this point. This is not
usually feasible.
Now to draw contours after locating yourself on the
map by one of these methods.
(1) In narrow valleys or gulches we could stand at the
bottom(rarely on the top) and mark direction of the gulch.
Next we determine the slope of the gulch by means of the clino-—
meter. With this slope the contours are placed all the way up
to the top. Also while standing at the bottom we determine a
point on either side by means of a hand level. This gives us the
direction of our contour. A ridge would be contoured in the
same way.
(2) In open or gently hilly country we sight from some
point,points at our own level with the hand level and contours
are then drawn in,the distances estimeted or paced.
(3) In country covered with very much timber the contours
had to be more or less guessed at,although a sort of a traverse
was run on about every third contour. Care was taken so as not
to overlook streams and guiches.
(4) When going down a large canyon as the Alamosa,we could
set up along traverse points and take slopes on both sides.
Then by observing the country the contours could be drawn in all

[page 14]
the way along.
(5) Near Jasper no triangulation points were to be seen,so
from traverse points on the road,rough triangulation points
were placed on the map and elevations calculated by the ordinary
triangulation methods,exeept using rough tools. From these
points nearly all this section was covered.
The geology of this district was studied along with the
contouring.
GHAPTER III. GEOLOGY.
A review of the different publications on this district
will be given first,after which the deductions of the work
during the summer will be set forth.
THE ENRICHMENT OF SULPHIDE ORES
by W. H. EMMONS.
BULLETIN # 529 of U.S8.¢.8.
The Summit district is S.W. of Alamosa,Colo. near the
Rio-Grande-Conejos county line. According to R.C. Hills the
metal bearing rocks are near the middle of the Tert&kiary
eruptions series of south and south-west Colo. The associated
rocks are andesites,trachytes,rhyolites,and other eruptives; but
unlike the eruptives of most terterary districts in this prov/
ince,these rocks appear to have been elosely compressed,and
form a series which as shown in Hill's sketches is probably
isoclinal. Some features of the ore deposits are puzzling,but
whatever their genesis,they illustrate very clearly the theory
of enrichment-a fact which was fully recognized by Hills as
long ago as 1883.
The ore bodies,so far as exposed,are rudely tabular and
approximately vertical. The ore is chiefly quartz and pyrite,
but contains some enargite,galena,sphalerite and other minerals.

[page 15]
iJBRARY
CE
SLORADO SCHOOL OF MINES
GOLDEN, COLO,
r
Loolfiag north tenard dasp%

[page 16]
ue
Although Hills mentions brown oxide in several places,he does
not say they are magnitiferous. Raymond etetes that the oxides
include those of purplish hue.
Placers appear to be of subordinate importance. The
mineralized matter may be separated into three divisions:—
(1):} The impoverished zone near the apex. (2):- The zone of
rich and partly oxidized ore,and (3):- The zone of low grade
sulphides. The zone of impoverishment includesthe outcrops of
all but two of the lodes and it extends downward to a depth of
50t or more. The zone of incompletely oxidized ore extends to
a depth varying from a few feet to 300 feet. In this zone the
Quartz. is colored dark brown by oxides and the more highly
auriferous material ig characterized by an abundance of brown
oxide. The gold in this ore carries about 0.025 oz. of silver
per ton. According to Hills all the bonanzas were confined to
this zone. In some placers,gold appears in a disseminated form,
in innumerable small grains so aggregated as to resemble a
continuous sheet of metal. Locally the grains unite and form
flat nuggets,one ounce or more in weight. According to Hills
the occurrence of this rich material is confined to the immediate
vicinity of a central channel,which has been filled with an
earthy material,fragments of rock,and iron oxides. Some of
the rich seams of gold powder have been introduced into fractures
which cut barite. Below the rich and partly oxidized zone, the
primary sulphides appear to have been unworkable under conditions
exhisting then. There is however in three mines a concentration
of silver at greater depths than that of the gold bonanzas.
Hills aseribes the two rich outcropping ore bodies,which are
exceptional in this district,to intense kaolinization on either
side of them,causing the country rock to be much more easily

[page 17]
10.
eroded than the extremely hard quartz. This consequently remained
-@onsiderable above the ground surface,forming a precipitous
ridge that was,as -he explains,protected from solution,which
went on more vigorously below,in the places where snow and
water accumulated.
Mr. Ac. Hills,who was referred to in the above,quoted
article by Mr.Hmmons,published a report on the Summit district
in Golo. The above article of Mr. Emmons is practically a
resume of Mr. Hills report. Mr Hills report is found in the
Proceedings of the Colo. Scientific Society,Vol. I,Page 20.
It is titled,Ore Deposits,Sumnit District,Rio Grande County,
Colorado. By R.C. Hills.
This article by Emmons refers to the district closely
associated with Summitville,where the ore occurs in honey eombed
quartz in South Mountain. This locality would therefore include
only the N.W. portion of the Jasper district,but many of the
statements would hold for the district near Jasper,as well as
those close as Summitville.
In the report of the Hayden Survey for 1875,page 1’%2,
is a short article on the Summit district. This report concerns
chiefly with Summitville and vicinity,and is of particular
value in this thesis.
No reports could be found on Jasper,or of the immediate
vicinity,and the rest of this chapter will deal with conditions
as observed by Dr. Patton and the writer during the summer
mentioned.
Five different kinds of rocks were observed in places,
and their respective areas will be shown on the geological map.
They were andesite,ddorite,diorite porphyry, rhyolite,and basalt.
The andesite covered by far the largest area,the other occuring

[page 18]
dle
in small patches or dikes in various localities. All of these
rocks are tertéfary eruptions,and therefore owe their origin to
this fact.
ANDESITE.
The andesites on Cornwall Mountain across from Jasper,
are very characteristic of the entire region. They are grayish
to grayish pink in color,with abundant biotite more or less
chlorotized,and finely porphyritic. They contain numerous
smell fragments, porphyritie in texture,some fine grained, some
eoarse grained,more coarse grained than the inclosed rock. These
_angular inelosed fragments are the most ready means for distin-—
guishing the andesite from the fine grained diorite porphyry
to be seen on the same mountain,near the Guadaloupe Mine.
DIORITE.
Diorite has been found in several places in this district,
but two places are of special interest. The largest outcrop of
diorite occurs down Wightman's Fork,about three miles from
Summitville. It is fine grained in texture,very hard,and very
dark in color. It has no quartz in it,and is a true diorite in
every sense. It occurs as a large boss or dike and extends on
poth sides of the valley. The source,however,appears to be on
the north side of the guleh,where the diorite lies in large
precipitous cliffs without vegetation. On the other side a
heavy vegetation prevents one from examining the boundaries of
the diorite very closely.
The other locality for diorite is between the Guadaloupe
and Miser mines. This is a coarse grained rock and also lighter
in color. It merges into diorite porphyry on one side,and andesite
ontheother. It appears to be a thin sheet and just a local
outcrop.

[page 19]
DIORITE PORPHYRY.
Diorite porphyry occurs in only one place in the district
although eloser to Stunner there are several places where large
outerops of diorite porphyry oceur. The principle placegy of
occurrence is at the Guadaloupe Mine. It merges into diorite
on one side,and andesite on the other. The boundary between the
andesite and diorite porphyry is not very well defined,the
distinetion being made as before specified.
RHYOLITE.
Rhyolite occurs in many small dikes thruout the territory
as shown in the geological map. In one place however, there is
quite a mass of rhyolite,namely on Elephant mountain, The
rhyolite is very scoriatious,has a good deal of quartz,and the
fresh sanadine can be seen very clearly. In every case of rhyolit
outerop,andesite can be found on all sides of it. It is about
10' wide and extends in a straight line for several miles between
Stunner and Wighmans Fork on the southern side of the Alamosa.
It is about 1000' above the river. Nothing valuable has ever
been found in this rhyolite,or any other rhyolites of the district
BASALT.
On the top of Cornwall,is a considerable patch of true
basalt. It is dark in color,and very scoriatious. It occurs in
a@ very thin sheet,probably not more than 50' in depth at any
place. It is a remnant of erosion,that is,at one time the basalt
must have covered a large area,but has been eroded away untill
only a thin sheet remains. There is another patch of basalt on
a mountain S.E. of Cornwall,which shows that the basalt must
have covered all the intervening terriory at one time.
GLACIATION.
Glaciation has occurred in nearly every part of the
terriory,as shown by the lateral moraines and glacial cirques,
whitah awa +n ha aaan Tha maat vroade ateona af olactiatian

[page 20]
Loe
however,are rounded diorite boulders,which are carried along
with the glacier,rounded and left stranded. There is practically
no part of the territory where these camnot be found,and we
traced the glaciation nea ly to the edge of the mountains on
the way out. A large glacial cirque can be seen just east of
the very top of Cornwall Mountain. In the besten oF the cirques
is a body of water,which appears to be very deep. This small
lake was known as Crater Lake,and several people have eleaimed
to have sounded it,and tried to find bottom but could not.
This summer Mr. C.E. Smith,one of the instructdrs of the party,
vuilt a small raft,and sounded it,with a plumb bob and string.
The deepest place he could find in the lake was 18' which
justifiea WK: Patton's statement that it was only a glacial
eirque.
The only place where there are no signs of glaciation
is on the top of Cornwall Mountain. This seems to have been a
small loeal center for the ice,which spread in all directions.
One small glacier from this center,would be shown by the
glacial cirque previously mentioned.
Two distinet glaciers have occured in this territory:
One which moved down the Conejos Valley,and one which moved down
the Alamosa Valley. A tributary glacier to the Alamosa Glacier
started at the ridge comprising South Mountain, Cropsy Peak, and
Rhyolite Peak. North Mountain was also a source of a part of
this tributary glacier. This glacier passed over Elephant Moun-
tain,and toward Cornwall Mountain, but never reached the top. It
joined the Alamosa Glacier between Cornwall Mountain and Hle-
phant Mountain and passed on down the Alamosa Valley. The
direetion of this glacier was shown by scratches on the top of
Elephant Mountain.

[page 21]
One of the largest lateral moraines,which was found
was at an elevation of 10,850! This moraine was on the western
side of the Wightman Fork Canyon. It represents a resting point
of the receeding ice sheet,which at one time completely filled
the canyon. This would show that the ice at this point was
about 800' thick,as the bottom of the canyon had an elevation
of 10,000! At one time however,the ice must have been very
much thieker,as it passed over the mountain on which the moraine
was found.
LANDSLIDES.
Several landslides have been found in this territory.
The largest one is near Gilmore,but has never been examined by
the writer,as it lies outside of this partiqlar district. In
this district two distinct slides are to be seen,one on the
north side of the ridge of Cornwall Mountain,and the other, on
Cornwall Mountain across from Jasper,about 2000 feet above
the town. These landslides are told from the very nature of
them,that is the mountain appears to have slipped down,or a part
of it fallen off. A great deal of broken rock will also be seen
which distinguished a slide from a lateral moraine,as the rocks
on a moraine will be more or less rounded.
ALLUVIUM.
In many places there are depositsidof alluvium,which are
Covered with grass and are usually swampy. They have been
deposited since the glacier. The largest area covered by alluvium
that was seen during the survey,is about 600 feet below the top
ofeCornwall Mountain,on the western side. It is more than one
Square mile in area and has narrow branches leading from it
in all directions. It's edge just touches this particular
district.

[page 22]
Wohi ee 15 — 22 15.
CHAPTER IV. MINES AND MILLS.
PERRY MINE.
The Perry Mine is located directly across the Alamosa
River ,from the town of Jasper. It is about 800 feet vertical
above the river bottom. Andrew Johnson was the man who discov—
ered this mine about the year 1874. It is owned at present by
the Cornwall Mining Co. the same company owning many other
promising maines around Zasper.
This mine has not been worked for a number of years. Some
very rich ore has been taken out however,assays running as
high as 1200 oz. of silver to the ton,and 2.20 oz. of gold to
the ton being not uncommon. In order to get the ore down to the
Yiver level,where there was a road,a unique feature in engineer-—
ing was accomplished, the remains of which are still to be seen.
It consisted of a wooden inclined railway supported on rocks
and wooden trestles,and working on a balanced system. The angle
of inclination was as high as 32 degrees. Considering the year
in which this was built,the inclination on which it was built,
and that remains are still to be seen this is truly remarkable.
From what I learned however the car jumped the track on the
Second trip,and it was never used again.
Up at the mine itself there was a shaft and tunnel,the
Shaft being about 150 feet vertical up the hill above the
tunnel. The shaft and tunnel were at one time connected,but so
much caving has resulted that it was impossible to get into
the shaft. The mine was originally worked thru the shaft,the
Shaft being inclined along the vein. Going into the tumnel
itself another specimen of Colorado Mining met our eyes. It was
a wooden car supported on wooden raiis,and in such good shape
that the names of the owners were plainly visible on the
battered sides. The entire length of the tunnel was 225 feet.

[page 23]
16.
Within a few feet of the vein however there is another cave in
So that it cannot be seen. The vein was reported to be about
12 peet wide. Within the tunnel there are three fault slips
With a soft clay gangue. The following strikes and dips were
taken which might reasonably be expected to be the general dip
and strike of the main vein.
(1)- 150 feet to portal strike. N 35 degrees W,dips 50
degrees S.W.
(2)- 180 feet to portal strike. N 60 degrees W,dips 50
degrees S.W.
(3)- 220 feet to portal strike. N 35 degrees W,dips 50
degrees S.W.
The country rock around the Perry Mine is andesite. The
ore itself was contained in a quartz replacement vein with a
Soft clay gangue on either side. This could be told by samples
taken from the vein which were lying around. Some very rich
Specimens have been shown and ae now it is not uncommon to
find rich silver nuggets in the Perry dump pile.
MISER MINE.
Probably the most notorious mine in this district is
the Miser Mine,whichris located about 1/2 mile above Jasper and
acrossthe Alamosa. It is nearly at the level of the iver the
dump extending into the river itself.
This mone was discovered over 30 years ago,and it was at
that time that most of it's present workings were built. It is
owned chiefly by Frank Moody,Dr.Ross,G.W. Balentine,and John
Gabriel,all of them residing in Denver.
The tip top vein,one of the many veins,which have been
discovered on Cornwall Mountain,across the river from Jasper
Was the original vein of the Miser property. On this account
SS a ee Sa se eS SSeS aes eae ae tae ee

[page 24]
L?.
the property conatins about 300 feet of the Perry Mine vein,
which strikes across the lower part of the property.
In the development of this ground,a cross cut tunnel has
been driven. It starts about 20 feet vertically above the river,
and runs directly into the mountain. The tunnel is 700 feet
long,and cuts the vein at 350 feet from the portal. This is the
Perry vein which was cut,and about 50 feet of drift work has
been done on the vein. The rest of the tunnel was extended in
to try and reach the tip-top vein or any other veins which
might be struck between the two. Nothing was however struck,
and so this end of the property has been neglected. This work
was carried on 30 years ago,and has not been touched until
quite recently. In the early days this mine was very rich,and
very rich ore has been reported to have been taken out.
Specimens estimed to run $52,000.00 to the ton in gold have been
taken out,according to hearsay. There was very little however
of this very rich ore,and most of it was given away as specimens.
Mrs. G.M. Hook of Jasper told the writer of the specimens,
belonging to her uncle,Frank Moody,which she had seen,with the
gold in stringers all thru the rock. The writer was shown one
specimen fromthe mine,which had been found in recent years,
and which was very rich in gold. The lowest ody ever taken
from the mine was 30 cents in gold.
On the first day of November,1912,Mr. GM. Hook,John
E Field,Charles W. Foster,and H.L.Morrison took a bond and lease
on the Miser property and Stn the Guadaloupe Mine. They worked
in the Miser Mine during the following spring,but about the
first of July changed over to the Guadaloupe and commenced
operations. While in the Miser they sank a small shaft on the
‘vein,and found a few rich specimens,but had to cease on account :
of too much water. They also did some stoping,but did not find

[page 25]
18.
any ore worth mining here. The mine is in very good condition
at the present time,and mining could be commenced very easily.
The strike of the vein on the drift,about 350 feet from
the portal is S 40 degrees E. Thedip is uncertain and could
not be determined accurately. It is a quartz vein,several feet
in width,but not very well exposed, There has been aonsiderable
faulting along the vein. A clay gangue is found along with the
vein and can be seen on either side. Above the tunnel level is
an intermediate level where the dip could be determined and
wes found to be N.E 70 degrees. At the entrance to the tunnel,
there are several small buildings,of which were a blacksmith
shop,a dry or change room,and a small engine room,containing
a gasoline engine. _
GUADALOUPE MINE.
Another interesting property which is situated across
the Alamosa from Jasper on Cornwall mountain. It is about 400
yards east of the Miser tunnel,and is just above the river. It
is the only property that is being worked at present,and seems
to be a very promising project.
This mine is owned chiefly by Alva Adams and others. It
is supposed to contain the same vein as the Perry Mine,that
is the Perry vein. It was first patented in 1882,and the apex
and the discovery tunnel are still able to be examined. The
apparent strike of this vein at the apex is S 70 degrees HE. and
dips S.W. 70 degrees. The vein is about 6 feet wide,and looks
as though it may widen out further in. It is poorly exposed,and
very hard to measure accurately. It is a quartz vein,the quartz
being mostly a replacement of the country rock. The country
rock is diorite porphyry ,fairly eoarse grained,and not flinty.

[page 26]
49%
It contains some cavities and quartz vugs. These vugs show
sphalerite,galena and pyrite which may or may not contain values.
The tunnel which is being worked on now is about 400
feet vertically below this apex or discovery tunnel. As stated
a bond and lease was given the 4 men on this property. So far
their work has been cleaning up this old tunnel,which has not
been worked for more than 30 years. They @mmenced operations
about the first of July,1913,and have been going steadily ever
since. Six men have been working,three on a day shift,and three
on annight shift. The tunnel was originally built to cut the
Perry vein,but for some unknown reason,after driving the tunnel
for 295 feet, they ceased to work. So far the work has been in
lowering the floor of the original tunnel,as.it had too much
of a grade. The old wooden tracks are being replaced with steel
ones,and a ditch is cut along the side of the track so that
the water can run out. At 226 feet,they encountered a small
vein,and one shift is drifting on this while theother shift is
eontinuing straight in. Minigp is very tedious in this tunnel,
as the rock is very hard. The strike of this vein is N.65 degrees
W. and it dips N.E. 72 degrees. It is 2-3 feet wide. It is only
exposed for about 15 feet. There are parallel stringers of
quartz from a few inches down to practically nothing. The vein
is of quartz in rotted country rock,namely diorite porphyry.
The character of the vein seems to be partly a replacement vein
andpartly a true fissure vein,but it is not very clear. A good
many sulphides can be seen in the quartz. A great deal of water
is coming down at the breast of the Guadaloupe tunnel. The rock
here is very hard and flinty,and will require a great deal of
work to drive in. There seems to be a contact here or perhaps
a fault,but it is not opened up enough to be certain.
The men have the mine in very good condition as far as

[page 27]
20.
the work has been done, They have a steel car and all the neces-
sary tools for mining. A small blacksmith shop is situated at
the entrance,and all the steel used is sharpened here. Mr. G.M.
Hook is locking after the mine,and stock is being sold at
present,so as to keep running until the Perry vein is reached.
Mr. Geo. Schneider,a mining engineer examined this
property,along with a great many other properties in this
district. He is said to have reported this mine to be one of
the two prospect in this region that showed any promise at all,
and from all appearances it looks very promising indeed.
OTHER PROSPECTS AROUND JASPER.
There are a great many more prospects around Jasper, but
most of them are all small tunnels,20 to 50 feet in length,
and so cavediin that no examination could be made of “them.
Nearly all the ground 6n Cornwall,across from Japser is patented
and there is also some patented land on the same side of the
river as Jappersalthough not as muck.
WATROUS CLAIMS.
About 3 miles below Stunner and across the Alamosa,we
come to the Watrous Claims. There are several tunnels and one
shaft on this property. Mr Watrous is owmer of the entire
group of workings.
EMMA TUNNEL AND SHAFT.
The Emma tunnel was the original or discovery point on
these claims. It was commenced in 1881. The tunnel was driven
for 375 feet,and had a cross cut drift at 60 feet from the breast.
,lhis eross cut drift was about 50 feet in length. The tunnel is
connected with a shaft,which is 350 feet vertically above the
tunnel level. The shaft was started in 1895. Some gray copper
and some tellurides make up the principal ore. A little ore has

[page 28]
= : el.
has been shipped from here,but not enough to pay for the pro-
duction. No work is being done on either property at present,
and examination could not be prbformed,as the shaft and tunnel
were to badly caved to enter. :
MOLLY TUNNEL.
Another one of Mr. Watrous prospects is the Molly tunnel
at an elevation of 9500 feet. It has been driven about 200 feet,
but was caved in at 100 feet from the portal. This tunnel was
driven in hopes of cutting veins above but nothing valuable
has ever been taken out.
APEX TUNNEL.
The latest of his projects is the Apex tunnel. It has
about 150 feet of workings,and was driven to cut a large quartz
vein,which can be seen cutting across Acme gulech,which contains
both the tunnel and the vein. Some very pretty Stibnite crystals
were to be found in this tunnel.
SUMMARY .
At present Mr. Watrous is building a road up this Acme
gulch to the Apex tunnel. In this way he is doing the assessment
work on 3 claims. He has an erasta for grinding ore,and uses
the water from Acme guleh for the power to run this machine.
Hecexpects to treat a little ore with cyanide after grinding
with the erasta.
OTHER PROSPECTS.
Although a great many prospects were found all over this
district,none but these mentione d are more than mere scratches,
most of them having just enough work on,to file on. Up Wightmans
Fork, there was one property that looked as though it might have
amounted to something at one time. It was locked however,so
that nothing could be told about it. This entire région has

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EOE
had practically no mining work on it for nearly 30 years,or at
the time that Summitville was at it's zejnith. Recently, because
of the strike and rush into Platora and vieinity,the ground
is again being carefully prospected and several tick mines
may result. A great many notices are to be seen al\ thru the
region,and many more will surely follow.
ASSAYING. :
The following were taken from some typical assays made —
at Jasper,and no care was taken in choosing the samples. Mr.C.W.
Foster of Monte Vista was the assayer. Most of the assays made
were from ore,which was taken from the Miser mine at Jasper:-
Number. Ounees of gold.
1. High grade 1/4 assat ton 35.68
2 Ore in 6 sacks 1/4 assay ton. 68
3 White quartz before concentration. 024
4 Rough gray quartz 1/2 assay ton. -08
5 i st grade quartz in 1/2" streak 1.92
mineral in with quartz. .
6 Hanging wall 1/4 assay ton. trace.
mate 18" streak,white curley quartz. «50
8 24 grade,curley rock quartz. 6.20
) Rejects. 209
ni) Concentrates,white quartz. .60
1d — e curley quartz. 8.50
i2 Roek from vein or streak. 1.84
CONCLUSION.
This is practically a new country,and has hardly been
seratehed, However old methods have taken out all of the richest
ore,so that now the ore to be found, will be of low values,and
therefore the modern methods of extraction will have to be used.
Until a railroad comes into this country,there is little chance
of extensive development. Several miles have been erected,but so

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far all of them have been failures. As one prospector puts it:-
"It is a rich man's country,and a great deal of money will have
to be spent in order to get all the values.We were told that the
Denver & Rio Grande Railroad were contemplating building into
Jasper,but from all probability it is not likely,that is in
the near future.
There is an abundance of water power. At one place on
Wightman's Fork,near where it empties into the Alamosa,there
is a natural falls ef ebbat 75 feet in height. This could be
very easily turned into power withput the expenditure of very
much money.
ACKNOWLEDGEMENTS.
The writer is indebted to Dr.Patton,of the Colorado
School of Mines,to G.M. Hook,and F.S. Watrous,who has claima
in the district,for a great deal contained in these pages. He
is also indebted for the many kindnesses shown him during the
Summer to various people thru-out the district. The writer
worked during the summer with Mr.L.F. Clark,who neplea toa
great extent in preparing this thesis.