| Crowfoot Formation | |
| Type: | Geological formation |
| Prilithology: | Anhydrite, dolomite |
| Otherlithology: | Shale |
| Namedfor: | Crowfoot Creek |
| Namedby: | H.R. Belyea and D.J. McLaren, 1957 |
| Region: | Western Canadian Sedimentary Basin |
| Country: |  Canada |
| Coordinates: | 50.748°N -112.587°W |
| Underlies: | Stettler Formation |
| Overlies: | Southesk Formation |
| Thickness: | up to 38m (125feet) |
The Crowfoot Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.
It takes the name from Crowfoot Creek, a tributary of the Bow River and was first described in the Royalite Crowfoot No. 2 well, located near the creek by H.R. Belyea and D.J. McLaren in 1957. [1]
The Crowfoot Formation consists of anhydrite, silty dolomite, with minor shale.[2]
The Crowfoot Formation is typically 4m (13feet) thick, but can reach up to 38m (125feet).[2]
The Crowfoot Formation is overlain by the Stettler Formation and overlays the Southesk Formation.[2]
It is equivalent to the Calmar Formation and part of the Graminia Formation in central Alberta and to the Torquay Formation in Saskatchewan, Manitoba and Montana.