Notch Peak Formation

The Notch Peak Formation is a geologic formation in Utah. It preserves fossils dating back to the Cambrian period.

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 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]

See also

• Earth sciences portal
• Utah portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Utah
• Paleontology in Utah