- Belknap Crater
Infobox Mountain
Name = Belknap Crater
Photo = Belknap.jpg
Caption = Belknap shield volcano with lava flows in foreground
Elevation = convert|6876|ft|m| [ cite web
url = http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=QD1846
title = NGS Data Sheet for Belknap Crater
publisher =U.S. National Geodetic Survey
accessdate = 2008-03-31 ]
Location =Linn County, Oregon , USA
Range = Cascades
Coordinates = coord|44.2842848|-121.8428303|format=dms|region:US_type:mountain [GNIS|1137894]
Topographic
USGS Mount Washington
Type =Shield volcano
Volcanic_Arc/Belt = Cascade Volcanic Arc
Age =
Last eruption = about 1500 years ago [cite web | title = DESCRIPTION: Belknap Shield Volcano, Oregon | work = Cascades Volcano Observatory | publisher =United States Geological Survey | date = 2005-12-28 | url = http://vulcan.wr.usgs.gov/Volcanoes/Belknap/description_belknap.html | accessdate = 2008-08-12]
Easiest route = hikePortions of this article include
public domain text from theUSFS [http://www.fs.fed.us/r6/centraloregon/geology/info/volcanoes/belknap.shtml Deschutes & Ochoco National Forests - Crooked River National Grassland] .Belknap Crater is a
shield volcano in theCascade Range inOregon ,USA .VNUM|1=1202-06-|2=Belknapaccessdate|2008-05-14] It is within theMount Washington Wilderness area.Belknap volcano is an great
Holocene example of the process which built the High Cascade Platform during thePleistocene . Small shield volcanoes with a cappingcinder cone .A number of other eruptions also occurred in the general area during roughly the same time period. About 1,300 calendar years ago (1,330 14C years B.P.) a series of small
spatter cone spatter cones formed between Belknap and Blue Lake. North of these, aphreatic explosion blasted out the crater which is today occupied by Blue Lake. To the south there are a number of cinder cones and associated lava flows, including Collier, Four-in-One, and Yapoah cones. Four-in-One Cone has been dated at about 1,900 calendar yrs old (1,980 14C years B.P.) while Collier is dated at about 1,500 calendar yrs old (1,600 14C years B.P.)cite web | title = Oregon Volcanoes - Belknap Volcanic Field | work = Deschutes & Ochoco National Forests - Crooked River National Grassland | publisher =United States Forest Service | date = 2003-11-26 | url = http://www.fs.fed.us/r6/centraloregon/geology/info/volcanoes/belknap.shtml | accessdate = 2008-05-14]Notable Vents
References
* cite book
last = Harris
first = Stephen L.
title = Fire Mountains of the West: The Cascade and Mono Lake Volcanoes (3rd ed.)
publisher =Mountain Press Publishing Company
date = 2005
pages= pp. 195–8
isbn = 0-87842-511-X
* cite book
last = Wood
first = Charles A.
coauthors = Jürgen Kienle, eds.
title = Volcanoes of North America
publisher =Cambridge University Press
date = 1990
pages = pp. 182–3
isbn = 0-521-43811-X
Wikimedia Foundation. 2010.