Halgaito Shale/Lower Cutler Formation

photo: The Confluence of the Colorado and Green rivers
The Confluence of the Colorado and Green rivers

NPS Photo by Neal Herbert

 

Deposited:
Permian Period (245 to 286 million years ago)

Depositional Environment:
Shallow seas and coastal plains

Appearance:
Ledgy slopes with brown sandstones

Examples:
Confluence of the Green and Colorado rivers and in Cataract Canyon

 

Rock Strata

Last updated: August 14, 2017

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