Mont Jefferson (Oregon) (French Wikipedia)

(en) Lyn Topinka, The Volcanoes of Lewis and Clark - Mount Jefferson, Oregon, United States Geological Survey, 29 juin 2004
(en) Lyn Topinka, Cascade Range Volcanoes - Volcano Names - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 9 mars 2011
(en) Lyn Topinka, The Volcanoes of Lewis and Clark - Volcano Sitings 1805 and 1806, United States Geological Survey, 19 mars 2004
(en) Lyn Topinka, John C. Fremont, U.S. Exploring Expedition - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 7 février 2011
(en) Lyn Topinka, Cascade Range Volcanoes: Historical Timeline - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 1^er mars 2011
(en) Lyn Topinka, Mount Jefferson Volcano, Oregon - Description, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 23 décembre 2005
(en) Lyn Topinka, Central Oregon High Cascades - Description, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 11 février 2002
(en) Central Oregon High Cascades, United States Geological Survey, Observatoire volcanologique des Cascades, Vancouver
(en) Lyn Topinka, Volcanic Hazards with Regard to Siting Nuclear-Power Plants in the Pacific Northwest - Report, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 25 avril 2008
(en) Lyn Topinka, Wheeler Survey, 1878 - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 15 février 2008
(en) Lyn Topinka, First Ascent of Mount Jefferson, Oregon - August 12, 1888 - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 7 octobre 2008
(en) Lyn Topinka, Frederick G. Plummer - Volcanoes and History, observatoire volcanologique des Cascades, United States Geological Survey, Vancouver, Washington, 19 septembre 2008

geopubs.wr.usgs.gov

(en) [PDF] Joseph S. Walder, Cynthia A. Gardner, Richard M. Conrey, Bruce J. Fisher, Steven P. Schilling, Volcano Hazards in the Mount Jefferson Region, Oregon, Open-file Report 99-24, United States Geological Survey, United States Department of the Interior
(en) [PDF] Joseph S. Walder, Cynthia A. Gardner, Richard M. Conrey, Bruce J. Fisher, Steven P. Schilling, Volcano Hazards in the Mount Jefferson Region, Oregon - Plate 1, Open-file Report 99-24, United States Geological Survey, United States Department of the Interior

geonames.usgs.gov

(en) Feature Detail Report for: Mount Jefferson, Geographic Names Information System, United States Geological Survey

washington.edu

(en) Catherine L. Townsend, John T. Figge, Northwest Origins - An Introduction to the Geologic History of Washington State, The Burke Museum of natural history and culture

washingtonhistory.org

columbia.washingtonhistory.org

(en) Allen Doc Wesselius, A Lasting Legacy - Part IV, Columbia Magazine, Vol. 15, n^o 4, hiver 2001-2002

web.archive.org

(en) [PDF] D. Pater, S.A. Bryce, J. Kagan, et al., « Ecoregions of Western Washington and Oregon (recto) »^{(Archive.org • Wikiwix • Archive.is • Google • Que faire ?)}/« (verso) »^{(Archive.org • Wikiwix • Archive.is • Google • Que faire ?)}

wikiwix.com

archive.wikiwix.com

(en) [PDF] D. Pater, S.A. Bryce, J. Kagan, et al., « Ecoregions of Western Washington and Oregon (recto) »^{(Archive.org • Wikiwix • Archive.is • Google • Que faire ?)}/« (verso) »^{(Archive.org • Wikiwix • Archive.is • Google • Que faire ?)}