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Near latitude 59°30’ the axis of this syncline swings north and then
northeast down Liard River Valley, where it follows close to the river. At
its northern end it “is joined by other structures and passes into the Liard
Range” of the Mackenzie Mountains (Hage, 1945).

Toad Anticline
(See Figure 4)

West of the Liard syncline the Triassic Grayling and Toad formations
and the Jurassic(?) and Lower Cretaceous Garbutt formation are folded
into a broad arch, the axis of which crosses Liard River about a mile east
of the mouth of Grayling River (Kindle, 1944). It trends northwest. The
dips on the northeast limb of this anticline are from 10 to 30 degrees and
on the southwest limb from 40 to 75 degrees. Many small folds are super-
imposed on this structure. Kindle states that this anticline closes ‘‘about
20 miles northwest of the Liard, where other anticlinal structures swing
northeast across its path’. The topography suggests to Kindle that the
anticline may “close 12 to 15 miles south of the mouth of Toad River’’.

A folded structure with two faults is mapped by Kindle in Liard Valley
between Brimstone Creek and Hades (Hell) Gate.

Scatter River Monocline
(See Figure 4)

A terrace structure is found west of Liard River in and near Scatter
River Valley. Near Liard River, the beds of the Lépine formation are said
to dip 10 to 20 degrees east. Farther west the underlying Scatter formation
comes to the surface and the dip decreases; from about 2 to 8 miles west of
the Liard the beds of the Scatter formation are flat-lying (Kindle, 1944).

Beaver River Anticline

About 12 miles north of the mouth of Beaver River, an asymmetrical
anticline trends northeastward. On the southeast limb, beds of the Scatter,
Lépine, and Fort Nelson formations dip 15 to 35 degrees and on the north-
west limb beds of the Scatter formation dip 3 to 7 degrees northwest.

Structures Recorded on Air Photographs

Kindle (1944) has observed an escarpment, thought to be a fault scarp,
on air photographs, northwest of Liard River. From a point on Crow
River, more than 20 miles west of its mouth, the escarpment trends north-
east almost to Beaver River and is only a little out of alinement with the
Dickie Mountain anticline, north of the map-area.

Kindle (1944 map) has also observed that Dickie Mountain, north of the
map-area, northeast of Beaver River and northeast of Beavercrow Mountain,
is the site of the southeast limb of the Dickie Mountain anticline. ‘This
anticline trends northeast and dips on both limbs appear, on air photo-
graphs, to be from 15 to 25 degrees. The axis, Kindle notes, extends south-
west almost as far as Beaver River and northeast to La Biche River. As
Merrill Mountain, lying well out on the southeast limb of the Dickie
Mountain anticline, is underlain by Carboniferous and Permian strata,
Kindle assumes that Carboniferous or older rocks underlie Dickie Mountain.