Within the earth science of geology, the Edmonton Group is a Late Cretaceous (Campanian stage) to early Paleocene stratigraphic unit of the Western Canada Sedimentary Basin in the central Alberta plains.

[2][1] The Cretaceous-Paleogene boundary occurs within the Scollard Formation, based on dinosaurian and microfloral evidence,[5] as well as the presence of the terminal Cretaceous iridium anomaly.

It consists of sedimentary rocks that were deposited in nonmarine to brackish water environments between the Canadian Rockies in the west and the Western Interior Seaway to the east.

[2] Its reaches a maximum thickness of 763 metres (2,503 ft) near the foothills of the Rockies in the west, and thins eastward to zero at its erosional edge east of Edmonton.

[1] Plant fossils are common in both the Late Cretaceous and early Paleocene portions of the Edmonton Group.