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Summary
| Description |
English: Steins Pillar in the Ochoco National Forest in central Oregon. This is a natural column of the volcanic rock type called ignimbrite, also known as welded tuff, of andesitic composition, that was deposited by pyroclastic flows from a nearby volcano in Oligocene times. (Reference for volcanic details: Waters, A.C (1966) Stein's Pillar Area, Central Oregon, The Ore Bin, volume 28 number 8, August 1966, pages 137 to 144. http://www.oregongeology.org/pubs/og/OBv28n08.pdf Retrieved 2015-01-16.) |
| Date | Unknown date; uploaded 20 June 2008 |
| Source | http://www.blm.gov/wo/st/en/bpd.html |
| Author | Bureau of Land Management |
Licensing
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This image is a work of a Bureau of Land Management* employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States. *or predecessor organization |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:39, 5 April 2009 | | 1,024 × 768 (245 KB) | Orygun | {{Information |Description={{en|1=Steins Pillar in the Ochoco National Forest in central Oregon}} |Source=http://www.blm.gov/wo/st/en/bpd.html |Author=Bureau of Land Management |Date=Unknown; uploaded 20 June 2008 |Permission= |other_versions= }} <!--{{ |
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