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8 of the most colorful 'painted' hillsides in the world

By: Bryan Nelson on March 28, 2014, 2:15 p.m.
The Painted Dunes as seen from the top of the Cinder Cone in Lassen Volcanic National Park

Photo: kojihirano/Shutterstock

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Painted Dunes, Lassen National Park

These colorful dunes, formed out of oxidized volcanic ash layers, are one of the highlights of Lassen National Park in Northern California. They lie in the shadow of Cinder Cone, an aptly named cinder cone volcano that was formed during two eruptions that occurred in the 1650s. The red and orange hues of the dunes are strikingly contrasted by the black volcanic sands.