Painted Hills: Difference between revisions
Aboutmovies (talk | contribs) m Removed category Wheeler County, Oregon; Quick-adding category Geography of Wheeler County, Oregon (using HotCat) |
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*[http://douglasdolde.com/pacificnorthwest.html A Photographic Journey Through the Pacific Northwest] |
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Revision as of 22:15, 3 May 2010
44°39′41″N 120°16′23″W / 44.6615223°N 120.2730726°W
Painted Hills is one of the three units of the John Day Fossil Beds National Monument, located in Wheeler County, Oregon.[1] It totals 3,132 acres (1,267 ha) and is located 9 miles (14 km) northwest of Mitchell, Oregon and 75 miles (121 km) east of Bend.[2] 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.[3] The red coloring is laterite soil that formed by floodplain deposits when the area was warm and humid.[4]
An abundance of fossil remains of early horses, camels, and rhinoceroses in the Painted Hills unit makes the area particularly important to vertebrate paleontologists.[5]
References
- ^ "John Day Fossil Beds National Monument". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2008-11-09.
- ^ "Painted Hills Unit". John Day Fossil Beds National Monument. U.S. National Park Service. Retrieved 2006-12-01.
- ^ "John Day Fossil Beds National Monument, Oregon". U.S. Geological Survey. Retrieved 2006-12-01.
- ^ "John Day Fossil Beds National Monument, Oregon". U.S. Geological Survey. Retrieved 2006-12-01.
- ^
Alt, David (1995). Northwest Exposures: A Geologic History of the Northwest. Mountain Press. pp. 227–231. ISBN 0-87842-323-0.
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External links
- "John Day Fossil Beds". National Park Service. Retrieved 2008-11-09.
- A Photographic Journey Through the Pacific Northwest
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