W2004–2008 volcanic activity of Mount St. HelensWAshfall Fossil BedsWBishop TuffWFish Canyon TuffWHuckleberry Ridge TuffWKeanakakoi eruptionWLava Creek TuffW1975 eruption of Mauna LoaW1984 eruption of Mauna LoaWMesa Falls TuffWNovaruptaW2009 Mount Redoubt eruptive activityW1980 eruption of Mount St. Helens
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