Mississippian and Permian beds in an area in the eastern Rocky Mountains of Alberta are presented in the form of two overlapping sections constituting over 2,200 feet of strata. The Mississippian time span embraced extends from early Osagean through late Chesterian and corresponds to the Rundle group. The Permian deposits are of Leonardian to Guadalupian age and comprise the Rocky Mountain group (redefined).

The Rocky Mountain group is divided into the Storm Creek³ formation (503 feet) above, and the Norquay formation (192 feet) below. Two faunizones are discriminated.

The Rundle group is divided into three formations, in descending order—the Tunnel Mountain (601 feet), Mount Head (580 feet), and Livingstone (920+ feet). These are subdivided into four, five, and five members, respectively. Nine faunizones are indicated in the Rundle succession, on the basis of which the Tunnel Mountain formation may be correlated with the Chesterian, the Mount Head formation with the Meramecian, and the Livingstone with the Osagean.

The Highwood Pass sections are so located as to assist greatly in local correlations between Banff and Mount Head, the type areas for many of the late Paleozoic units of the region.