The Grosmont Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.
The Energy Resources Conservation Board of Alberta estimates 406 billion barrels bitumen in place.
[3] While most reserves can not be extracted economically with current technology, several production pilots target the Grosmont Formation.
[1] At the subcrop edge at its northeastern limit it is unconformably overlain by the McMurray Formation of the Mannville Group.
The Hondo Member is an anhydritic sub-division present in the western and southern extents of the Grosmont Formation.