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

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]

Lithology

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

Distribution

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.

^ ^a ^b ^c ^d Lexicon of Canadian Geologic Units. "Kotaneelee Formation" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2010-01-01.
^ Hage, C.O., 1945. Geological reconnaissance along the lower Liard River, British Columbia, Yukon and Northwest Territories. Geological Survey of Canada, Paper 45-22.

v t e Western Canadian Sedimentary Basin
Hydrocarbon history	Oil sands and heavy oil Frontier exploration and development Natural gas liquids Natural gas
Depositional regions	Southern Alberta Central Alberta Northwestern Alberta Plains South-central Canadian Rockies foothills North-east Plains North-central foothills Liard River Fort Nelson Northern Rocky Mountains Fort St. John Saskatchewan Western Manitoba
Liard River area	Wapiti GRP Kotaneelee FM Dunvegan FM Ft. St. John GRP Sully FM SikanniFM Lepine FM Buckinghorse FM Scatter FM Garbutt FM Liard FM Toad FM Grayling FM Ishbel GRP Fantasque FM Kindle FM Mattson FM Golata FM Debolt FM Prophet FM Besa River FM Dunedin FM Stone FM Wokpash FM Muncho-McConnell FM Nonda FM Kechica FM Atan FM Canadian Shield
Fort Nelson area	Wapiti GRP Kotaneelee FM Dunvegan FM Ft. St. John GRP Sully FM SikanniFM Buckinghorse FM Scatter FM Belloy FM Rundle GRP Debolt FM Shunda FM Pekisko FM Banff FM Exshaw FM Kotcho FM Tetcho FM Trout River FM Kakisa FM Redknife FM Jean Marie MBR Fort Simpson FM Horn River FM Muskwa FM Waterways FM Slave Point FM Watt Mountain FM Muskeg FM Sulphur Point FM Presqu'ile FM Pine Point FM Keg River FM Chinchaga FM Canadian Shield