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Red Rock Canyon State Park

Red Rock Canyon State Park

The geologic history of Red Rock Canyon is told by its unique rock formations. Layers of red and white sediments, creating the accordion-like folds in the cliff faces, are capped with a harder, more resistant black basaltic rock or pink volcanic tuff. These sedimentary and igneous layers were deposited in an ancient inland lake and valley millions of years ago and have ages ago been lifted by the Sierra Frontal Faults. Streams and rivers have carved the canyon with its colorful cliff faces. The red coloring between the layers is an iron oxide (rust) staining.

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Photo taken @ R on 14 May 2019 (© docentjoyce / Flickr)

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