<![CDATA[In the Painted Desert of Northern Arizona (shown here in a palette of purples), wet-dry cycling has contributed to the formation of the colorful layers visible in the landscape. (Credit: USGS)]]>

676392 image 1740516020 1740516020 <![CDATA[In the Painted Desert of Northern Arizona (shown here in a palette of purples), wet-dry cycling has contributed to the formation of the colorful layers visible in the landscape. (Credit: USGS)]]> In the Painted Desert of Northern Arizona (shown here in a palette of purples), wet-dry cycling has contributed to the formation of the colorful layers visible in the landscape. (Credit: USGS)

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