, 1898-11-08
.sT0NE AND C[AYS
WYOMING IS WE'LL SUPPLIED
WITH THESE BUILDING
MATERIALS.
Quarries Have Been Opened. But So
Far There Has Been No Export
Trade-Prof. Knight Contributes
an Interesting Article to the F;ngi-
: neering and Mining Journal.

Prof. W. c. Knight, professor of
geology in the University of Wyoming,
writes as follows in the current number
of the Engineering and Mining Jour-
nal:
Wyoming is we'll supplied with build
ing stone. Quarries have been opened
to supply local demands. but with few
exceptions has there been any export
trade. GRANTEES of all shades and tex
lures occur in the Archaean exposures,
which " an area approximately
5000 square miles. At Sherman, in AL
bany county, quarries have been open
ed, but the trade has been exception
ally light. This granite resembles the
famous Scotch stone. Among the meta
morphic rocks there are s%erpentines,
quantities., marble, dolomitic marbles
and onyx marbles. Valuable serpen-
tine has been found on Casper noun
tain. but it is undeveloped. Quartzite
has been quarried from the Cambrian
rocks north of Rawlins for many years.
1t has been used chiefly in the vicinity
Of the quarry. Some fifteen or twenty
miles northwest of Wheatland Mr.. H.
Yount has several locations on a large
deposit of dolomitic marble. 1t is an
excellent stone, but cannot be utilized
at present on account Of the long haul
by wagons. Marbles are found in Lar
annie, Albany, Uinta, Converse, FIRE.
mont, Johnson and Sheridan counties,
but none OF the localities are produc-
tive. Onyx marble quarries have been
opened by w H. Wyman of Cokeville.
Other companies have also opened some
claims. The stone is a rich amber COL
or. cuts and potishes beautifully, and
compares f%avorably with the celebrat-
ed Mexican product. Mr.. James Kelly
opened an onyx marble quarry at Hart
vile in 1894. Thus far the production
of onyx marble has been very slight.
Among the unaltered s%edimentary
rocks, limestone and sandstone are
found in every variety. R. W. Bradley,
Of Cheyenne, has operated a quarry on
the Cheyenne and Northern railroad
for years. The quarry is in the Triassic
sandstone and has been largely used
In Cheyenne for building purposes.
James McPherston of Rawlins has OPP
Grated the largest quarry in Wyoming.
1t Is located a few miles south Of Raw
Inns. The stone is a light gray color;
chushes at 10000 pounds, and can be
quarried in blocks Of any size. 1t works
easily and breaks as well across the
bedding as with 1t. The state capitol,
state ~penitentiary and many other not
able buildings have been constructed
Of this stone. 1t has also been shipped
to Nebraska points. Nearly every town
in the state has a stone quarry, but
they are operated to supply the local
demand and, In consequence, the out
put is small and quite irregular. There
are many places along the lines Of rail-
road where quarries could be success
fully operated, were 1t possible to Sc
cure railroad rates 50 that the quarry
men could compete with the Colorado
production.
The following is a list of the pro-
ducing quarries in Wyoming:
R. W. Bradley, Cheyenne. sandstone.
G. johnson, Laramie, limestone.
VIM. Birnie, Laramie, limestone.
James McPherson, Rawlins, sand
stone.
H. Lawson, Rawlins, quartzite.
Geo. ". Dumford. Evanston. sand
stone.
L. B. Chapman, lander, sandstone.
W. H. Wyman, Cokeville, onyx mar
BILE.
James Kelley. Hartville. onyx mar
BILE.
Harry Yount. Wheatland. Dolomitic
Marble.
Pioneer Marble and Building Stone
Company. Sheridan county. marble and
building stone.
Clays-So far as Is known the clays
Of Wyoming that have any commercial
importance occur in beds in the sedi-
mentary rocks. These clay beds are
most numerous In the Jurassic and Gre
taceous formations, but are found to