25

Lake valley followed by a syncline on Slate mountain to the west, another
anticline on Big Missouri ridge and another syncline along the west slope of
the ridge. This is followed to the west by a greatly disturbed anticline and
the final westerly dipping limb of the main anticline.

AGE OF HAZELTON GROUP

Fossils were found east of the head of Kitsault river, at two horizons in
the basal part of the sediments overlying the Kitsault igneous body. Speci-
mens from these localities have been examined by F. H. McLearn who
reports as follows:

“The specimens submitted are Gryphaea sp., Oxytoma sp., Belemmtes
sp., Rhynchonella sp., and Terebratula sp. The fauna submitted is certainly
either Jurassic or Cretaceous and very probably Jurassic.”

Fossils were also collected from two or three horizons close together
and near the base of sediments overlying the Bear River igneous body at
Divide lake, Bear River district. F. H. McLearn examined them and
reports as follows:

“Trigonia sp. No. 1, Trigonia sp. No. 2, Trigonia sp. No. 3. Three
are new species of genus Trigonia section undulate.

Belemnites sp., too fragmentary for identification.

Gryphaea sp., too immature to permit specific determination.

Pecten entolium sp., too poor for identification.

Cucullaea sp., probably new species.

The Trigonia specimens suggest but do not prove a Jurassic age.”

Crickmay! has described two new species of Trigonias from Divide
lake. He names them Vaugonia veronica and Vaugonia mariajosephinae
and dates them as Middle Jurassic.

A fossil was collected from the sediments underlying volcanic rocks of
the Bear River igneous body on Kate Ryan creek. The fossil is very poorly
preserved and is placed doubtfully by McLearn in the genus Calamo-
phyllia. The age suggested is Triassic to Jurassic. An indeterminate fossil
was collected from Glacier creek, Bear River district.

COAST RANGE INTRUSIVES

The Coast Range intrusives occupy the western part of Portland Canal
area and also form several small stocks in Salmon and Bear Rivers districts.
The Coast Range intrusives are hard and resistant compared with the aver-
age of the other rocks and, therefore, large bodies of the intrusives. form
elevated tracts of country. The granite mountains seen from a distance of
several miles are typically light grey in colour and can easily be distin-
guished from the mountains of other rocks. The granitic rocks, particularly
above timber-line, break off the mountain sides along curving fractures
leaving smooth, rounded outlines. On a closer view, from a distance of a
mile or less, the granitic rocks are seen to be traversed by numberless cracks
giving the rocks a very shattered appearance. Except for roof pendants or

1The Jurassic Rocks of Ashcroft, B.C.”; Univ. of California Pubs. 1930, vol. 19,
No. 2, pp. 53, 54, 74, 75.