Kotaneelee Formation
Stratigraphic range: Late Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Wapiti Group
Overlies	Dunvegan Formation
Thickness	up to 305 metres (1,000 ft)[1]
Lithology
Primary	Shale, sandstone
Other	Conglomerate
Location
Coordinates	60°10′N 123°46′W / 60.17°N 123.77°W / 60.17; -123.77 (Kotaneelee Formation)
Region	WCSB
Country	Canada
Type section
Named for	Kotaneelee River
Named by	C.O. Hage, 1945

The Kotaneelee Formation is a stratigraphical unit of Late Cretaceous age in the Western Canadian Sedimentary Basin.

It takes the name from the Kotaneelee River, and was first described in outcrop in the river valley by C.O. Hage in 1945.^[2]

The Kotaneelee Formation is composed of marine shale, sandstone, conglomerate. ^[1]

The Kotaneelee Formation has a thickness of 152 metres (500 ft) to 305 metres (1,000 ft) .^[1] It occurs in outcrop along the Petitot River and Liard River valleys from the Beaver River to the Kotaneelee River mouth.

The Kotaneelee Formation is gradually overlain by the Wapiti Group and conformably overlays the Dunvegan Formation.^[1]

It is equivalent to the Wapiabi Formation in Alberta.