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Painted Hills
Hill
in
John Day Fossil Beds NM
,
Columbia Plateau
near
Mitchell
,
OR
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Painted Hills, in the northwest United States, is one of the three units of the John Day Fossil Beds National Monument, located in Wheeler County, Oregon. It totals 3,132 acres (12.67 km2) and is located 9 miles (14 km) northwest of Mitchell, Oregon. The Painted Hills are listed as one of the Seven Wonders of Oregon. Painted Hills is named after the colorful layers of its hills corresponding to various geological eras, formed when the area was an ancient river floodplain. The black soil is lignite that was vegetative matter that grew along the floodplain. The grey coloring is mudstone, siltstone, and shale. The red coloring is laterite soil that formed by floodplain deposits when the area was warm and humid. An abundance of fossil remains of early horses, camels, and rhinoceroses in the…
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Hill
Geologic Formations
John Day Formation of east-central Oregon (ORTsfj;0)
Geologic Formation
John Day Formation
Geologic Formation
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