Ancient, fossilized "ergs" (sand seas) — now known as "Navajo Sandstone". Taken at the Horseshoe Bend. Millions of years ago, this used to be a desert.
Ancient, fossilized "ergs" (sand seas) — now known as "Navajo Sandstone". Taken at the Horseshoe Bend. Millions of years ago, this used to be a desert.
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