Wapiti Group is a geophysical formation type and underlies in scollard (Upper Cretaceous to lower Palaeocene) formation while overlies in sandstone.
Geological formation The term geophysics sometimes refers only to geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. Scollard Formation Smoky Group, Kotaneelee Formation Shale, sandstone Shale, sandstone, siltstone The Scollard Formation is an Upper Cretaceous to lower Palaeocene stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. 
