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Fourpeaked Mountain description and information

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Description
From Wood and Kienle (1990): "Fourpeaked Mountain consists of small isolated volcanic exposures surrounded by the Fourpeaked Glacier. The exposures are found along ridge crests and cliff faces on the sides of ridges that radiate out from the ice-covered summit. Lava flows are interlayered with volcanic agglomerate in the isolated exposures.

"Orientation of lava flows suggests the present summit of Fourpeaked is probably the vent for Fourpeaked volcano. Extensive hydrothermal alteration of rocks in this area is consistent with this vent location.

"Fourpeaked is known only from limited reconnaissance studies. The lavas are porphyritic andesite."

Location
Facts
Official Name: Fourpeaked Mountain
Type:Stratovolcano
Most Recent Activity:September 17, 2006
Seismically Monitored: Yes
Color Code:GREEN
Alert Level:NORMAL
Elevation: 6903 ft (2104 m)
Latitude: 58.7703° N
Longitude:153.6738° W
Quadrangle:Afognak
CAVW Number:1102-26-
Pronunciation: Sound file
Synonyms:Fourpeaked Mtn.
Fourpeaked volcano
Gora Chetierek Glavaia
Tapirag, Mt.
St. Dolmat
Four Peaks, Island of the
Four Peaked Mtn.
Nearby towns:
Port William 44 mi (71 km)
Aleneva 59 mi (95 km)
Kokhanok 60 mi (97 km)
Pope-Vannoy Landing 62 mi (99 km)
Anchorage 213 mi (343 km)
URL: www.avo.alaska.edu/volcanoes/volcinfo.php
Page modified: April 3, 2013 10:21
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