The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1875-11-16
Prof. Jenney's Report.
CwSTnake the following extracts
ffomIPnof. Jsnnsy's preliminary re-

we Emdhc Ailc lbhion ih6 OA"N
1romlProE. Jenney's preliminary re-
report TO the Interior Department:
EgrrThe most extensive and valuable
deposits Of auTiferous gravel discover
ed during the past season were in the
valleys of Spring and Rapid Greeks,
and their tributaries, where la almost
every efnse the gravel bars HrS very
advantageously situated for working
and many natural circumstances cum
tribute materially to the profitable
extracting of the gOld which they Gun
tain. f"
Timber of suitable size and guam
tity for theeunstruction OF lumes and
siuices Is abundant. The water sup
ply is inemOst localities ample, and
the falltof the streams sufficiently
great To- enable the water 10 be read
iIy carried above the level of even
the more elevated bars and deposited
gravely - ~
.eWIAle as yet there have beer dis
covered Ia the Black Hills no deposits
of gravel sufficiently rich in goId to
he pruitably worked In the primitive
win pan Or rocker, yet there
are many bars in the Haruey's Peak
told, ESPECIALLY upon Spring Greek,
tile .orlts Of Cistle and Rapid Greeks,
and the valleys OF thUse mountain
streams, which, when sKliiuliy
worked by gangs OF miners WIN
s~luices, will yield a good return Tor
the labor employed and the moderate
Capital required 10 be Invested. But
efitlie cnuid be Ilune In Il single season
in prospecting the numerous segregI-
ted quartz VEINS of tins region, some
of wnicl undoubtedly contain gold.
L have procured abundant samples
to test their value by assay.
The Bear Lodge gold field, situated
10 the1extreme northwestern portion
of the hills, is wholly in Wyoming
I.Ad entirely separated from the Har-
neyPeak region. 1t does not exceed
fifty square miles in area; the gold
deposits-are small compared with
those on Rapid Creek, and r rU-
marketable for the ~absencefOf quartz in
tho gravel, the gold being derived
tom The. disintegration of feldspar
pOrphyry, carrying irregular masseS
of iron aud manganese ore.
The abundance and fine quality Of
the grasses and the shelter afforded
to stock by the densely-timbered
slOpes-and deep valleys Will make it
a lSk VII wei hApNSN w SNONh oiSibS
purposes.
the timber of the hills is a variety
of pine known as yellow or heavy
pipe-The-graiu of the wood Is
Straight, rather coarse, splitting read
lily; aud where the trees have escaped
the action of tires and yluient gales,
good, straight logs, free from Knots
and from Al to 80 feet in length and
from II to "a inches in diameter, can
be obtained in abundance. Spruce Of
good Equality is found among the
cAnons in the interior, and white
birch, oak, and elm of medium size
among the hills on the eastern slope.
c1he rSSAter Throughout the hills is
excellent ia quality, mostly derived
from springs among the limestone or
the granite or schistose rock. Only
in localities among the foothills Is it
contaminated by ulkali.
There was no evidence found that
the indians ever lived in the hills or
ever visited them, exceptin the spring
TO cut lodge poles, or occasionally stop
and hunt deer among the foothills
while passing from the agencies to the
Upper Missouri. The only reason adj
Vaneed for the cause OF their not living
in the hills is the prevalence of severe
thunder-storms and the frequency OF
trees being struck by lightning.
In regard to the work done by the
survey, / may state that the whole
area between the forks of the Cheyenne
River, rs well as the course of both
these streams, has been carefully map
ped by the topographer, V. 7. McGily-
cuddy, who has also located the posi-
tiou OF the important peaks in the
hills, and mapped the course of the
different mountain ranges and
streams. In this work he has been
assisted by the astronomer, Capt. H.
P. Tuttle, who has. wherever practi-
cable, determined the latitude and
longitude of more important points.
The scientific geology of the bills has
been most carefully and thoroughly
worked up by the g%eologist, Mr.. Henry
Newton; while to myself mud the
practical miners was allotted the work
OF prospecting for gold, and determiu-
lag the mineral resources of the
country.p iolVlE tt@iA f