Mount Griggs formerly known as Knife Peak Volcano is a stratovolcano which lies 10 km behind the volcanic arc defined by other Katmai group volcanoes. Although no historic eruptions have been reported from Mount Griggs vigorously active fumaroles persist in a summit crater and along the upper southwest flank. The fumaroles on the southwest flank are the hottest and some of the flank fumaroles can roar so loudly that they can be heard from the valley floor.
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point
elevation (μ)
2317.09
eruption date
-1790-01-01T00:00:00+02:00
located in area
Lake and Peninsula Borough Alaska, Katmai National Park and Preserve, United States
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