Kootenai Formation
| Use attributes for filter ! | |
| Underlies | Blackleaf Formation |
|---|---|
| Sub-units | Basal Conglomerate, Lower Clastics, Lower Limestone, Upper Clastics, Gastropod Limestone |
| Overlies | Morrison Formation |
| Regions | Montana |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3091503 |
About Kootenai Formation
The Kootenai Formation is a Lower Cretaceous geologic formation. The Kootenai was deposited in a foreland basin east of the Sevier thrust belt in western Montana. The lithology consists of a basal conglomerate with overlying non-marine sandstones, shales and lacustrine limestones.