Notch Peak Formation
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| Notch Peak Formation | |
|---|---|
| Stratigraphic range: Cambrian | |
 Notch Peak with Notch Peak Formation | |
| Type | Geological formation |
| Sub-units | Hellnmaria Member, Red Tops Member, Lava Dam Member |
| Thickness | 1,890 feet[1] |
| Lithology | |
| Primary | limestone |
| Other | dolomite |
| Location | |
| Region | Utah, Nevada |
| Country | United States |
| Extent | House Range |
| Type section | |
| Named for | Notch Peak[1] |
| Named by | Charles D. Walcott[1] |
| Year defined | 1910[1] |
The Notch Peak Formation is a geologic formation in Utah. It preserves fossils dating back to the Cambrian period.
The Notch Peak Formation has three recognized members: Hellnmaria, Red Tops, and Lava Dam Members (in ascending order), all of which are composed of limestone and dolomite.[2] It is named after the prominent peak of the same name in the House Range of Utah's West Desert, which is its type locality.[1]
