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An anticlinal structure borders the southwest side of the Fisher Creek
structural zone, just as a similar structure lies southwest of the Carbon
Creek basin. The Monteith, Beattie Peaks, and Monach formations are
folded into an anticline, with a minor fold on one limb. Southeast of Pine
River, the same formations are folded into an anticline faulted close to the

axis (Mathews, 1947).
Pine River Anticline

Northeast of the Fisher Creek structural zone and south of Moberly
River is an anticline. It rises in a complex and not yet thoroughly under-
stood structure near the upper part of McAllister Creek, a structure that
may be continuous, more or less, with the faulted anticline northeast of
the Carbon Creek basin and probably continuous with the Horseshoe Hill
structure north of Peace River, described in a foregoing paragraph. This
anticline crosses Pine River west of Crassier Creek (Mathews, 1947) and
extends to and beyond Hasler Creek, where it has been mapped by Spieker
(1921, 1922), Wickenden and Shaw (1943), and Spivak (1944). South of
the Pine it trends about north 45 degrees west.

Near Falls Mountain this anticline is broad, and has some minor folds
on the northeast limb and a small fault on the southwest limb near the
axis. In Pine River Valley, Bullhead and Moosebar beds outcrop on the
axis of this anticline and Moosebar and Commotion beds on the flanks
(Wickenden and Shaw, 1943; Spivak, 1944).

Pine River Syncline

A broad syncline lies between the Pine River anticline in the southwest
and the Commotion-Hulcross structural zone in the northeast. It has been
mapped by Wickenden and Shaw (1943). Itisa broad, shallow syncline,
widening to the northwest, and is possibly continuous with the Branham
Ridge syncline in Peace River Valley.

The Dunvegan outcrops at high elevations and the Cruiser and Good-
rich formations at lower elevations, on the axis of this syncline.

Commotion-Hulcross Structural Zone

The Commotion-Hulcross structural zone has been described by
Wickenden and Shaw (1943). It comprises three anticlines, all lying
northeast of the Pine River syncline.

The Commotion Creek anticline trends a little west of north and
extends along Goodrich and Commotion Creeks to about 6 miles north of
Peace River. The axial plane dips about 45 degrees west and the plunge
north of Pine River is northerly at about 35 feet per mile. The dip on the
west limb is about 5 degrees and on the east limb is low for about 2 mile
east of the crest, where it steepens to 50 or 60 degrees; at one place, on
Young Creek, the attitude is vertical and faulting occurs. The high dips on
the east limb are said to continue to about 3 miles north of the forks of
Commotion Creek. Wickenden and Shaw believe that the high dips met
with in the Pine River No. 1 (Commotion) well, near the mouth of Com-
motion Creek, record a continuation below the surface of this high-dipping
structure. They also advance the opinion that the high dips are in a west-
dipping rupture or zone of faulting on the eastern flank of the Commotion
Creek anticline. They consider that a mere overthrust will not entirely