Geology and Minerals

Chugwater Formation

The Chugwater Formation is a mapped bedrock unit consisting primarily of red sandstone, in the states of Wyoming, Montana, and Colorado in the United States. It is recognized as a geologic formation in Colorado and Montana, but as a Group (set of formations), the Chugwater Group, in Wyoming. Despite its presence below the highly studied Morrison Formation, the Chugwater receives little attention.

Also on this shelf

See also

• ▸Gunflint chert
• ▸Bertha Beckmann
• ▸Cotta Sandstone

Uncatalogued shelf

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