| Doig Formation | |
|---|---|
| Stratigraphic range: middle Anisian-Ladinian ~ | |
| Type | Geological formation |
| Underlies | Halfway Formation |
| Overlies | Montney Formation |
| Thickness | up to 190 metres (620 ft)[1] |
| Lithology | |
| Primary | Siltstone, shale |
| Other | Phosphate, sandstone |
| Location | |
| Coordinates | 55°42′N 121°18′W / 55.7°N 121.3°W |
| Approximate paleocoordinates | 25°06′N 35°00′E / 25.1°N 35.0°E |
| Region | NW  AlbertaNE  British ColumbiaSE  Yukon |
| Country |  Canada |
| Extent | Western Canadian Sedimentary Basin |
| Type section | |
| Named for | Doig River |
| Named by | J.H. Armitage |
| Year defined | 1962 |
  Doig Formation (Canada)  Doig Formation (British Columbia) | |
The Doig Formation is a geologic formation of middle Triassic age in the Western Canadian Sedimentary Basin. It takes the name from Doig River, a tributary of the Beatton River, and was first described in the Texaco N.F.A. Buick Creek No. 7 well (located north-west of Fort St. John, east of the Alaska Highway) by J.H. Armitage in 1962. .[2]