73 the top shale and thin-bedded sandstone and shale. The Bad Heart sandstone member consists of 10 to 25 feet of coarse sandstone, weathering reddish brown. It stands out prominently in all the cliffs from Puskwaskau river to within a few miles of the Little Smoky and forms a horizontal, frieze-like band in the cliff walls of shale. The higher part at least of the upper shale member of the Smoky River formation is Montanan. The upper shale member is made up of dark, friable shale with thin bands of sandstone near the top; ironstone concretionary bands are present. The thin banding and marine fossils indicate marine deposition. - The thickness is 300 feet. Wapiti Formation. The Wapiti succeeds the Smoky River formation and is intermittently exposed on Smoky river from Bezanson almost to the mouth of Bad Heart river. On this part of the Smoky there is a thickness of 900 feet and its upward extension is not known. The sandstone beds are thick, massive, and erossbedded. They contain rootlets and, in places, flat concretions. The shales vary from a couple of feet to over 50 feet in thickness, are grey to dark car- bonaceous, and show vertical rootlets. A coal bed with a maximum thickness of 4 inches occurs 580 feet above the base and a second coal seam 3 inches to 4 inches thick, 180 feet above the base. This formation is evidently of subaerial origin. The sandstone walls occasionally weather into grotesque forms; the flat concretions form caps to detached or partly detached pillars and irregular buttresses. . The Wapiti occupies the stratigraphic position of the Foremost and Pale beds of the Belly River series of southern Alberta, but the upward range of this formation is not at present known. The following paragraph by G. M. Dawson!, descriptive of the rocks of: Pine River South and Table mountain, is of interest. “Tn the Pine River caifion, the rocks of this subdivision are flaggy sand- stones, often brownish-grey in colour and false-bedded or ripple-marked, greenish- grey, fine-grained sandstones and black, soft, argillaceous sandstones and shales holding plant impressions, also occur. In the valley of a small stream which cuts the bank on the south side of the cafion, not far above the river level, Mr. Selwyn, in 1875, found, in alternating strata of sandstones and shales, four thin seams of coal which in descending order are—six inches, eight inches, two feet, and eight inches thick. A number of fossils were also found in the associated beds, consisting of leaf-impressions and shells. ‘The former occur chiefly in beds below the coal seams, and the latter in the intervening sandy shales, and in the ferruginous and calcareous concretionary nodules which accompany the latter” These coal seams and the associated beds are at least 1,700 feet below the sandstones of the summit of Table mountain, and as the beds are nearly horizontal, this difference in elevation must closely correspond with the actual thickness of the rocks. For a~-portion of the ascent of Table mountain, however, the rocks are not seen, though about 200 feet thick of sandstone caps the hill. I+ is, therefore, uncertain whether the subdivision classed as the Upper Shales? may occur in the concealed interval and the sandstones at the summit represent the Upper Sandstone’ series, or whether—as is perhaps more probable— the entire thickness of the rocks from the edge of Pine river to the summit of yg a hap Pa nD A es eS a nae Oe inte se ae ee oe deepal Geol. Surv., Can., Rept. of Prog., 1879-80, p. 117 B. 2 Smoky River. 3 Wapiti. NS ee RSs et lee eviimen rete nn Sea ane agers eum errs alaeaannoaas= 29% ia Sigh teats Sar ao RnNaaG Mee PT Frets) Sat var = ep ee ie = “STE Egileebabate Sates. Bee BONER ors si A Fa AES Omer ert cei te os