View source for Jordan Craters

{{Short description|Volcanic field in eastern Oregon, USA}}
{{Infobox mountain
| name = Jordan Craters
| photo = Jordan Craters LeeSiebert 102095.jpg
| photo_caption = <small>Coffeepot Crater (left center) was the source of voluminous basaltic lava flows in the Jordan Craters volcanic field of SE Oregon.</small>
| elevation_ft = 4833
| elevation_ref = <ref name="SI">{{cite gvp |vn=322190 |name=Jordan Craters |accessdate=2008-05-16}}</ref>
| prominence = 
| location = [[Malheur County, Oregon|Malheur County]], Oregon, United States
| range = 
| coordinates = {{coord|43.1118219|N|117.4159899|W|type:mountain_region:US-OR_scale:100000_source:GNIS|format=dms|display=inline,title}}
| range_coordinates = 
| coordinates_ref = <ref>{{cite gnis |id=1122521 |name=Jordan Craters |accessdate=2008-11-14}}</ref>
| topo = 
| type = [[Volcanic field]]
| age = less than 30,000 years <ref name="Wood">{{cite book |last=Wood |first=Charles A. |author2=Jurgen Kienle |title=Volcanoes of North America |publisher=[[Cambridge University Press]] |year=1993 |isbn=0-521-43811-X |pages=210–211}}</ref>
| last_eruption = 1250 [[BCE]]<ref name="SI"/>
| first_ascent = 
| easiest_route = 
}}

The flows of '''Jordan Craters''' volcanic field are the youngest of a series of large [[Quaternary]] [[basalt]] fields in the eastern part of the [[U.S. state]] of [[Oregon]]. The field is thought to be approximately 3200 years old, based on findings of a lake sediment coring experiment in 1986. It was formed by basaltic [[pahoehoe]] emanating from vents throughout the area.<ref name="USGS">{{cite web |title=Jordan Craters volcanic field |url=https://volcanoes.usgs.gov/volcanoes/jordan_craters/ |website=USGS Volcano Hazards Program |publisher=United States Geological Survey |accessdate=18 October 2019}}</ref>

The most recent flows come from Coffeepot Crater, a large breached [[cinder cone]]. These flows show excellent examples of inflated lava.<ref name="USFS">
  {{cite web
  | title = Oregon Volcanoes - Jordan Craters Flows
  | 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/jordancraters.shtml
  | accessdate = 2008-05-16
  | archiveurl = https://web.archive.org/web/20110512011359/http://www.fs.fed.us/r6/centraloregon/geology/info/volcanoes/jordancraters.shtml 
  | archivedate = 2011-05-12}}</ref> Historically, it is believed that Coffeepot Crater held a pond of lava that would occasionally breach the sides of the crater to flow freely into the field.<ref name="USGS" />

Jordan Craters is approximately 120 miles (200&nbsp;km) southwest of [[Boise, Idaho]]<ref name="Wood"/> and 18 miles (30&nbsp;km) northwest of [[Jordan Valley, Oregon]].<ref name="USGS" />

The craters are free and open to the public all year.

== See also ==
* [[List of volcanoes in the United States of America]]
* [[List of volcanic fields]]

== References ==
{{USFS |url=https://web.archive.org/web/20110512011359/http://www.fs.fed.us/r6/centraloregon/geology/info/volcanoes/jordancraters.shtml |article=Deschutes & Ochoco National Forests – Crooked River National Grassland}}{{nbsp}}(archived)
{{Reflist}}

{{Volcanoes of Oregon |state=collapsed}}
{{Authority control}}

[[Category:Volcanic fields of Oregon]]
[[Category:Landforms of Malheur County, Oregon]]
[[Category:Volcanoes of Oregon]]


{{MalheurCountyOR-geo-stub}}