Painted Dunes, Lassen Volcanic National Park, California
Holocene lava flows near the base of Cinder Cone are partly covered with volcanic air-fall and ash deposits, forming a colorful area called the Painted Dunes. Five lava flows have erupted from the flanks of Cinder Cone since 1567 AD. Oxidation of iron-rich minerals in the ash and cinders produced the photogenic Painted Dunes.
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