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explain this structure, as “horizons east of this fault, on South Cruiser
Mountain, are at higher elevations than corresponding beds west of the
fault on Submarine Mountain”. Wickenden and Shaw interpret this to
mean that “‘the ruptured beds occur along a narrow, compressed syncline
that trends between the two mountains parallel to the anticline”. A thrust
displacement of 200 feet was observed east of Young Creek. The Com-
motion, Hasler, and Goodrich formations outcrop on the axis of this anti-
cline. The Goodrich is overthrust on the Cruiser formation along the fault
on the eastern limb (Wickenden and Shaw, 1943).

Three miles north of the forks on Commotion Creek, this anticline
passes into a northeasterly dipping monoclinal fold. The assumed syn-
cline in the fault zone, east of the anticline, south of the forks can be ob-
served here, but is merely a minor flexure.

Beyond an area of poor exposures and northwest of the site of the
Commotion Creek anticline, on Alvin Creek, is the Hulcross anticline.
It trends northwest and is not considered by Wickenden and Shaw to be con-
tinuous with the Commotion Creek anticline. Strata of the Commotion,
Hasler, and Goodrich formations outcrop along the crest of this fold. The
dips on the southwest limb are low and those on the northeast limb are
much higher. The fold pitches southeast, and Wickenden and Shaw
infer that a thrust fault underlies the northeast limb.

A third, the Moberly anticline, is described by Wickenden and Shaw.
It lies north of the Hasler anticline, and is said to trend north 60 degrees
west and to plunge easterly.
Comments

Many structures in Peace River Valley appear to be continuous with
structures in Pine River Valley. The folded structure of Folded Hill on
Peace River can be followed southeast through one or more anticlines along
the southwest border of the Carbon Creek basin and the southwest border
of the Fisher Hill structure to Pine River Valley. The Schooler Creek
syncline can be traced southeast through the Carbon Creck basin, where it
is cut off by a complexly folded structure at the headwaters of McAllister
Creek, and is in alinement with the synclinal Fisher Creek structure
in Pine River Valley. The faulted anticline of the Horseshoe Hill struc-
ture can be traced southeastward along the northeast border of the Carbon
Creek basin; is involved in a complex structure near the headwaters of
McAllister Creek; and is in structural alinement with the Pine River anti-
cline. The Branham Ridge syncline is probably continuous with the
Pine River syncline in Pine River Valley. he folded and faulted structural
zone between Beattie Hill and Rainbow Rocks is in part continuous with
the Gething-Stott structure on the south side of Peace River, and may
be in structural alinement with the Commotion-Hulcross structural zone in
Pine River Valley. The Dunlevy syncline and the Portage-Butler structural
zone seem to disappear to the southeast. Some of the structures show a
south or southeast plunge, for example, the Branham Ridge syncline and
the Portage-Butler structural zone. Some changes in regional trend in
Pine and Peace River Valleys have been recorded.

It has been observed that the concentration of high dips in narrow

belts separated by wide belts of gently folded strata is a characteristic
feature of the Peace River Foothills (McLearn, 1940). “The major

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