(STRA19) Asymmetrical ripple marks in sand caused by the current of the Colorado River, Lees Ferry, AZ photo

Doug Sherman | all galleries >> Geology >> Stratigraphy > (STRA19) Asymmetrical ripple marks in sand caused by the current of the Colorado River, Lees Ferry, AZ

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08-MAR-2008

(STRA19) Asymmetrical ripple marks in sand caused by the current of the Colorado River, Lees Ferry, AZ

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