The spectacular colors appear almost unnatural and hand-painted.
The black soil is lignite that was vegetative matter that grew along the floodplain.
The grey coloring is mudstone, siltstone, and shale.
The best time to visit the hills is after a rainstorm when every color is intensified.
The sight draws hundreds of landscape photographers and artists to the place.
Another busy time of the year is in winter, after a light dusting of snow.
The stark white of the snow juxtaposed against the colorful striations makes for a strong composition.
The Painted Hills unit is open year-round with easy access for all visitors.
There are a handful of well-marked trails to guide you through the park.
A similar multi-colored, multi-layered landscape is seen inDanxia in China.
Sources:Wikipedia,Mitchell Oregon,Oregon Foto
