Summit area of Westdahl volcano located on the southwest part of Unimak Island in the eastern Aleutian Islands. The topographic peaks in the distance are Westdahl Peak (left) and Faris Peak (right). The cinder cone in middle ground marks the principal vent for the 1991 to 1992 eruption. Note the snow-mantled lava flow emanating from cinder cone. The sinuous fissure cutting the ice cap formed in the opening phases of the eruption and was the location of spectacular lava fountaining.

Photograph by C. Zeillemaker, U.S. Fish and Wildlife Service, February 2, 1993. Source: http://geopubs.wr.usgs.gov/dds/dds-40/

此圖像屬於公有領域，因為其包含的內容最初來自美國內政部下屬的美國地質調查局。進一步資訊請參見USGS的版權方針。 Bahasa Indonesia ∙ català ∙ čeština ∙ Deutsch ∙ eesti ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ Nederlands ∙ português ∙ polski ∙ sicilianu ∙ suomi ∙ Tiếng Việt ∙ Türkçe ∙ български ∙ македонски ∙ русский ∙ മലയാളം ∙ 한국어 ∙ 日本語 ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ العربية ∙ فارسی ∙ +/−