Big Hole (Oregon)

Big Hole (Oregon)

Infobox Mountain
Name=Big Hole
Photo=East rim of Big Hole, Oregon.jpg
Caption=East rim of Big Hole, Oregon
Elevation= 4750 ft
Location=Lane County, Oregon, USA
Range= Cascade Range
Prominence =
Coordinates = coord|43.42528|N|121.31222|W|type:mountain|format=dms
Topographic
USGS Big Hole
Type=maar
Volcanic_Arc/Belt=
Age=
Last eruption= Possibly 20,000 years ago [cite web|url=http://www.gsajournals.org/perlserv/?request=get-abstract&doi=10.1130%2F0016-7606%281970%2981%5B1823%3ASAOTEM%5D2.0.CO%3B2|title= Some Aspects of the Eruption Mechanism of the Big Hole Maar, Central Oregon|date=1970-01-14|accessdate=2007-08-30]
First ascent=
Easiest route=

Big Hole is a large maar (explosion crater) in the Fort Rock Basin of Lake County, central Oregon, northeast of Crater Lake, near Oregon Route 31. It is approximately 6000 ft (1820 m) across and convert|300|ft|m deep. [cite book
last = McArthur
first = Lewis A.
authorlink =
coauthors = Lewis L. McArthur
title = Oregon Geographic Names
origyear = 1928
edition = Seventh Edition
year = 2003
publisher = Oregon Historical Society Press
location = Portland, Oregon
id = ISBN 0-87595-277-1 (trade paperback), ISBN 0-87595-278-X (hardcover) ]

It is close to another smaller, but less-eroded maar crater, Hole-in-the-Ground.

References

External links

*cite web | title = CVO Menu - Fort Rock and Vicinity, Oregon | publisher = USGS/Cascades Volcano Observatory
date = 2002-03-06 | url = http://vulcan.wr.usgs.gov/Volcanoes/Oregon/FortRockBasin/description_fort_rock_vicinity.html
accessdate = 2008-04-29
*cite journal | last = Heiken | first = G. H. | coauthors = R. V. Fisher and N. V. Peterson
title = A Field Trip to the Maar Volcanoes of the Fort Rock - Christmas Lake Valley Basin, Oregon
journal = Geological Survey Circular | issue = 838 | publisher = United States Geological Survey
date = 1981 | url = http://www.nps.gov/history/history/online_books/geology/publications/circ/838/roadlog6.htm
accessdate = 2008-04-29


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