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Marine fossils occur throughout the Haida formation,
sometimes in great abundance.

Stratigraphy and Structure.

The Haida formation varies in its internal stratigraphy
from place to place, and cannot well be described as a whole.

On Skidegate inlet several sections of the rocks are found
some of which are complete. The Bearskin Bay section extends
from Haida point, where the basal beds rest unconformably
on the Yakoun volcanics, westward beyond the mouth of the
Honna river, where the Haida is conformably overlain by the
Honna conglomerate. The rocks dip westward at moderate
angles, undulating somewhat in the upper portion. The lower
half of the formation consists of massive and flaggy, greenish
and greyish sandstones and arkoses, with shaly interbeds.
From Queen Charlotte westward the upper half of the Haida
is much finer and the beds are thinner and more shaly. Con-
cretions and concretionary layers abound, and weather in relief,
simulating sills. False bedding is frequently seen, especially
in the lower beds.

On Maude island another complete section is exposed. The
basal beds fringe the eastern end of the island and form a band
across the central part, with a westerly dip, surrounding an old
projection of the Vancouver group. False bedding is remarkably
well shown on the southeast end of Maude island. Several
hundred feet of the lower part of the formation are composed
of a very massive, fine-grained, greyish-green sandstone, with
shaly interbeds, well exposed on the northern side of Maude
island, and in part on the southern side of Lina island. This
massive band has not been recognized in the Bearskin Bay
section, less than 2 miles distant.

The Haida formation exposed in the vicinity of Camp
Robertson is different from either of the above sections, and is
clearly divisible into two members, the lower about 3,000 feet
and the upper averaging 2,300 feet in thickness. The Robertson
coal seam occurs about 200 feet below the base of the upper
division. The lower member is made up of alternating beds of