No latest activity reported for Hoodoo Mountain.

Below is a summary of eruption dates and Volcanic Explosivity Indices (VEI).

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Edwards B R, Edwards G, Russell J K, 1995. Revised stratigraphy for the Hoodoo Mountain volcanic centre, northwestern British Columbia. {Geol Surv Can, Current Res. 1995-A}: 105-115

Edwards B R, Russell J K, 1994. Preliminary stratigraphy of Hoodoo Mountain volcanic centre, northwestern British Columbia. {Geol Surv Can Pap}, 94-1A: 69-76

Edwards B R, Russell J K, Anderson R G, 2002. Subglacial, phonolitic volcanism at Hoodoo Mountain volcano, northern Canadian Cordillera. {Bull Volc}, 64: 254-272

Hickson C J, Edwards B R, 2001. Volcanoes and Volcanic Hazards in Canada. {In}; Brooks G R (ed) {A Synthesis of Geological Hazards in Canada}, Geol Surv Can Bull, 548: 1-248

Hickson C J, Soos A, Wright R, 1994. Catalogue of Canadian volcanoes. {Geol Surv Canada Open-File Rpt}

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. {IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior}.

Kerr F A, 1948. Lower Stikine and western Iskut River areas, British Columbia. {Geol Surv Can Mem}, 246: 1-94

Wood C A, Kienle J (eds), 1990. {Volcanoes of North America}. Cambridge, England: Cambridge Univ Press, 354 p

Hoodoo Mountain is a flat-topped Pleistocene-to-Holocene volcano in the Boundary Ranges of NW British Columbia near the Alaska border that is composed of both subglacial and subaerial volcanic products. Valley glaciers surround the volcano on all except the south side. The Pleistocene Little Bear Mountain basaltic tuya adjoins Hoodoo Mountain on the immediate north. Most of the volcano formed beneath glacial ice; all flank flows appear to have originated from beneath the current 4-km-wide summit icecap. More than 90% of the volcano, which dates back to at least 100,000 years, consists of interlayered peralkaline phonolitic and trachytic lava flows and hyaloclastites. At least one subaerial explosive eruption produced a welded and unwelded ignimbrite sequence on the north side. The most recent stage of volcanic activity produced subaerial unglaciated lava flows with well-preserved lava channels that originated from summit and flank vents about 9000 years ago.