The Luscar Group is a geologic unit of Early Cretaceous age in the Western Canada Sedimentary Basin that is present in the foothills of southwestern Alberta.

[1][2] It is subdivided into a series of formations, some of which contain economically significant coal deposits that have been mined near Cadomin and Luscar.

Its thickness is difficult to determine accurately due to folding and faulting that characterize the Alberta foothills, but is estimated to be about 145 m (480 ft) in the type area.

[1] The Luscar Group is an eastward-thinning wedge of clastic sediments derived from the erosion of newly uplifted mountains to the west.

The sediments were transported eastward by river systems and deposited in a variety of braided stream, river channel, floodplain, swamp, coastal plain, marginal marine and shallow marine environments along the western edge of the Western Interior Seaway.