Trader Mtn
Spurr
Great Sitkin
Akutan
Aniakchak
Atka volcanic complex
Augustine
Cleveland
Dutton
Edgecumbe
Fisher
Gareloi
Great Sitkin
Griggs
Iliamna
Isanotski
Kanaga
Katmai
Little Sitkin
Mageik
Makushin
Martin
Novarupta
Pavlof
Redoubt
Semisopochnoi
Shishaldin
Snowy
Spurr
Takawangha
Tanaga
Trident
Ugashik-Peulik
Ukinrek Maars
Veniaminof
Westdahl
Wrangell
Adagdak
Addington volcanic field
Alagogshak
Amak
Amchixtam Chaxsxii
Amukta
Andrew Bay volcano
Basalt of Gertrude Creek
Behm Canal-Rudyerd Bay
Black Peak
Bobrof
Bogoslof
Buldir
Buzzard Creek
Camille Cone
Capital
Carlisle
Chagulak
Chiginagak
Churchill, Mt
Cone 3110
Cone 3601
Dana
Davidof
Denison
Devils Desk
Double Glacier
Douglas
Drum
Duncan Canal
Emmons Lake Volcanic Center
Espenberg
Folsoms Bluff
Fourpeaked
Frosty
Gas Rocks, the
Gilbert
Gordon
Gosling Cone
Hayes
Herbert
Imuruk Lake Volc Field
Ingakslugwat Hills
Ingenstrem Depression Volcanic Field
Ingrisarak Mtn
Iron Trig cone
Iskut-Unuk River cones
Jarvis
Jumbo Dome
Kagamil
Kaguyak
Kasatochi
Kejulik
Kialagvik
Kiska
Klawasi Group
Knob 1000
Kochilagok Hill
Koniuji
Kookooligit Mountains
Koyuk-Buckland volcanics
Kukak
Kupreanof
Lone basalt
Maclaren River volcanic field
Moffett
Monogenetic QT vents of WWVF
Morzhovoi
Nelson Island
Nunivak Island
Nushkolik Mountain volcanic field
Okmok
Pavlof Sister
Prindle Volcano
Rainbow River cone
Recheshnoi
Roundtop
Sanford
Seguam
Segula
Sergief
Skookum Creek
St. George volcanic field
St. Michael
St. Paul Island
Steller
Stepovak Bay 1
Stepovak Bay 2
Stepovak Bay 3
Stepovak Bay 4
Suemez Island
Table Top Mtn
Tanada Peak
Tanax̂ Angunax̂
Tlevak Strait
Togiak volcanics
Uliaga
Ungulungwak Hill-Ingrichuak Hill
Unnamed (near Ukinrek Maars)
Vsevidof
Western Cones
Wide Bay cone
Yantarni
Yunaska
Legend
✕
 | Red (Warning) |
| Orange (Watch) |
| Yellow (Advisory) |
| Green (Normal) |
| Uninstrumented |
 | Community |
| Webcam |
 | Instrument |
 | Earthquake |
Facts
- Seismically Monitored: No
- Color Code: UNASSIGNED
- Alert Level: UNASSIGNED
- Elevation: 802m (2631ft)
- Latitude: 55.56377
- Longitude: -161.94523
- Smithsonian VNum:
- Pronunciation:
-
Nearby Towns:
- Belkofski 32 mi (52 km) SW
- King Cove 38 mi (60 km) SW
- Cold Bay 40 mi (65 km) SW
- Nelson Lagoon 42 mi (67 km) NE
- Sand Point 59 mi (95 km) SE
Distance from Anchorage: 584 mi (940 km)
Description
Trader Mountain is a small dacitic stratocone-like feature with an extrusive dome; lava flows dip away from the center in all directions (Chris Nye, oral commun., 2007). Wilson and others (1995) [1] alternatively describe Trader Mountain as a hypabyssal dacite plug, and report a "potassium-argon age of 0.98+/- 0.05 Ma (F.H. Wilson and Nora Shew, unpub. data, 1988)."Name Origin
"Trader Mountain" is a local name reproted by the U.S. Geological Survey in 1929. It may be named after the nearby Traders Cove (Orth, 1971).
References Cited
[1] Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska, 1995
Wilson, F. H., Detterman, R. L., Miller, J. W., and Case, J. E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 2272, unpaged, 2 sheets, scale 1:24,000.Reported Activity
Modern Eruptions
1 Event Date(s)
Past Activity Legend:
 |
Eruption |
 |
Questionable eruption |
 |
Non-eruptive activity |
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Map Images
Map References
Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska, 1995
Wilson, F. H., Detterman, R. L., Miller, J. W., and Case, J. E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 2272, unpaged, 2 sheets, scale 1:24,000.
Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, 1994
Wilson, F. H., Shew, Nora, DuBois, G. D., and Bie, S. W., 1994, Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula: U.S. Geological Survey Miscellaneous Field Studies Map MF 2155-E, 18 p., 1 plate, scale 1:250,000.
Generalized geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska, 1991
Wilson, F. H., Detterman, R. L., and Harris, E. E., 1991, Generalized geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF 2155-A, unpaged, 1 plate, scale 1:250,000.
Potassium-argon age determinations from the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula, 1987
DuBois, G. D., Wilson, F. H., and Shew, N. B., 1987, Potassium-argon age determinations from the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 87-0191, unpaged, 1 sheet, scale 1:250,000.
References
Geologic database of information on volcanoes in Alaska (GeoDIVA), 2022
Cameron, C.E., Crass, S.W., and AVO Staff, eds, 2022, Geologic database of information on volcanoes in Alaska (GeoDIVA): Alaska Division of Geologic and Geophysical Surveys Digital Data Series 20, https://doi.org/10.14509/geodiva, https://doi.org/10.14509/30901.
Alaska Volcano Observatory image database, 2016
Cameron, C.E., and Snedigar, S.F., 2016, Alaska Volcano Observatory image database: Alaska Division of Geological & Geophysical Surveys Digital Data Series 13, https://www.avo.alaska.edu/images/. https://doi.org/10.14509/29689.
Preliminary database of Quaternary vents in Alaska, 2014
Cameron, C.E., and Nye, C.J., 2014, Preliminary database of Quaternary vents in Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 153, 11 p., doi:10.14509/27357 .
Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska, 1995
Wilson, F. H., Detterman, R. L., Miller, J. W., and Case, J. E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 2272, unpaged, 2 sheets, scale 1:24,000.
Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, 1994
Wilson, F. H., Shew, Nora, DuBois, G. D., and Bie, S. W., 1994, Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula: U.S. Geological Survey Miscellaneous Field Studies Map MF 2155-E, 18 p., 1 plate, scale 1:250,000.
Generalized geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska, 1991
Wilson, F. H., Detterman, R. L., and Harris, E. E., 1991, Generalized geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF 2155-A, unpaged, 1 plate, scale 1:250,000.
Potassium-argon age determinations from the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula, 1987
DuBois, G. D., Wilson, F. H., and Shew, N. B., 1987, Potassium-argon age determinations from the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 87-0191, unpaged, 1 sheet, scale 1:250,000.
Late Quaternary glaciation of the Pavlof Bay and Port Moller areas, Alaska Peninsula, 1985
Weber, F. R., 1985, Late Quaternary glaciation of the Pavlof Bay and Port Moller areas, Alaska Peninsula: in Bartsch-Winkler, Susan, (ed.), The United States Geological Survey in Alaska: accomplishments during 1984, U.S. Geological Survey Circular C 0967, p. 42-44.