The circle banner. [volume] (Circle, Mont.) 1914-1939, 1924-11-07

creek, both emptying into the Mis-
souri, river, north of the area mop
! ped. These creeks have deep cut
coulees showing exposures practi-
cally the entire length. The topo-
graphical high points of the Wayne
structure (Sullivan anticline) are
fairly consistent with the structural
high points.
StratIgraphy
"The exposures along the surface
of the axis of the structure are IN
the upper part of the Kootenai form
alton, in fact, the surface of the en-
tire area is Kootenai until you go
south to the edge of Belt creek,
where you find exposures of the Nor
rison, Ellis, and Quadrant, down to
the Madison limestone. In drilling
on this structure the formations will
in all probability, be the Kootenai,
the Morrison, the Ellis, and the Qua
drant. There are exposures showing
sands in all these formations. In
the Ellis and Quadrant formations
there are sands with a thickness of
40 feet. Practically all of these
sands in the above-mentioned forma-
tons are known to have produced oil
in different sections of the Rocky !
mountain region, and in fact the |
two predominant producing sands |
of the Sunburst field are one in the
Kootenai and one at the bottom Of
the Ellis. The Kootenai is the prin
cipal producing horizon of Cat Greek.
Also from all the evidence possible
to obtain it is the horizon in which
light oil was found in the Belts well,
a few miles south of Stockett and
10 miles west of this structure; in
this horizon, good showing of oil
was found in the two wells drilled at
Vaughn, indicating that production
is possible from sands in this forma-
ton, in this particular district.
Structure
"In the section examined the
structure possesses features of fair
y sharp anticlines, with dips from
TWO to 10 degrees, and sharp syn I
lines of varied depths, with the
ong normal north dip averaging
rom two to three degrees, continu-
ng for many miles to the north, |
which is considered ideal for the &C
of oil and gas. With
good drainage, and a known hydro
tatic pressure as revealed in the two
wells drilled at Vaughn, 80 miles
vest and north and in the we'll drill II
ID at Benton lake, 27 miles north II
vest, and the well drilled at the con-
luence of the Sun and Missouri riy- H
RS, at distance of about Is miles
0 the west and north of this struc- II
ure, indicating that accumulation
f oil and gas should be found close
0 the highs in this structure. On
he east there is a pronounced syn II
line some distance east of Belt II
lutte and running in the shape of
resent, in a northwesterly direc- III
on to Sheppard's Butte, distance II
about 13 miles. On the west II
acre is a synclinal condition rum III
ing northwesterly and a little to H
lie west of Box Elder creek, for a
lstance of 10 to Is miles On the
'uth there is a radial fault running
ON near Eden, in township IS, A.
tst, to point south of Arlington, II
township Is, Feast, and two other II
mailer faults running from east OF II
lit, in township 10, feast, west to II
e district of Stockett, in township H
}, Breast, which faults are shown H
lite plainly in some of the coal H
ines of the Belt district. These H
ults, in the opinion of the writer, II
tn the addition of the east and II
est, small but sharp synclines, pos
vely closes this structure on the II
nth side. This faulted condition, L.