The Ma Butte Formation is a stratigraphic unit of Early Cretaceous (Albian) age in the Western Canada Sedimentary Basin.

Beds of bentonite and tuff increase upward toward the contact with the overlying Crowsnest Formation.

[1][3] The Ma Butte Formation is present in the southern foothills of Alberta as far north as the Red Deer River.

[3] The sediments of the Ma Butte Formation were derived from erosion of mountain ranges to the west, transported eastward by river systems, and deposited in a variety of floodplain environments.

They include angiosperm (flowering plant) fossils, in contrast to the underlying Beaver Mines Formation.