In some areas there are also minor pebbles, cobbles and boulders of limestone, dolomite, black argillite and, rarely, greenish volcanics.

The conglomerate and sandstone beds are cemented with silica, making them very hard and resistant to erosion, so they tend to form prominent outcrops.

[6] Deposition of the Cadomin Formation marked the renewal of subsidence and sedimentation following a long period of uplift, exposure and erosion of older strata.

[3] The Cadomin sediments were derived from sources in the mountains to the west, and were deposited across the pediment surface by systems of alluvial fans and braided streams.

[5] The Cadomin Formation preserves the oldest dinosaur skeletal fossils from Alberta (and anywhere west of Nova Scotia in Canada).