The Glasgow courier. [volume] (Glasgow, Mont.) 1913-current, 1921-09-02
GEOLOGY AND OIL
AND GAS PROSPECTS

The State Bureau of Mines and
Metallurgy with headquarters at the
School of Mines in Butte now has
ready for distribution it's most recent
bulletin which deals with Geology
and Oil and Gas Prospects of Central
and Eastern Montana" The authors
of the bulletin are Charles H. Clapp,
former president and professor of
geology at the School of Mines and
now holding similar positions at the
State University at Missoula, Arthur
Bevan, assistant professor of geology
at the State University, and G. S..
Lambert, assistant professor of geol-
ogy at the School of Mines. These
three men spent the greater part of
the summer of 1920 in making a sur
vey of the central and eastern parts
of the state, especially of those dis
tricts which were not covered by the
U, S. Geological Survey some years
ago, and this bulletin gives in handy
form the results of their investiga-
tions correlated with the results of
the older survey.
No attempt was made by the au-
thors to go into the oil and gas pros
poets exhaustively, their work being
more in the nature of a general re-
connaissance which would lay the
foundations for closer investigation
and study at some other time. The
bulletin does give a decidedly good
idea of the general geology of the
sections which are covered. 1t is
worded as much as possible in non-
technical language and while it will
be valuable to trained biologists and
engineers it will also furnish much
useful and interesting information to
those without special training who
are interested in the development of
the oil, gas, and coal structures in
Montana.
President Clapp in the introduction
explains the general geology ard the
surface features of the districts COW
cred and then takes up the Cretaceous
and Tertiary Continental formations.
He also gives a complete photography
of books, and bulletins which touch
on Montana geology. Professor Bevan
deals with the Mesozoic and Paleozoic
SYSTEMS in the State while Professor
Lambert takes up the economic feat
ures with special reference to coal,
oil, and gas. The volume contains
nearly a hundred pages of clearly
printed material.
Perhaps more useful than the ar
ticles themselves are the maps which
form a part of the bulletin. One of
these printed in colors is 5 feet, 4
inches long by 8 feet, 4 inches wide,
and shows clearly the geologic struc-
lures of all that part of the state
lying east of a line drawn roughly
from the eastern border of Glacier
National Park, west of Choteau and
Great Falls, and east of Helena and
Bozeman to the southern boundary of
Montana. 1t is drawn to a scale of
eight miles to the inch which makes
it possible to show many features in
considerable detail. A smaller map in
black and white illustrates the loca-
ton of the major geologic structures
only. The maps are the work of Pro-
fessor Lambert who has given them
much painstaking attention. The
wish to have the larger map thor
oughly reliable delayed the issuing of
the bulletin several months.
Copies of this bulletin may be OBJ
tanned by writing to the State Bureau
of Mines and Metalurgy. The School
of Mines, Butte, Montana. Owing
to the limited number and the cost of
having the maps printed and to the
desire that copies may fall into the