Northwest Vacation 2004
Mount St. Helens National Monument

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Another view of the avalanche deposits, known as "hummocks", from Johnston Ridge Observatory
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Trees blown down by the force of the May 18, 1980 eruption blast. The area shown is north of Johnston Ridge Observatory
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Entrance to Ape Cave, a lava tube formed 2000 years ago, from an eruption of Mt. St. Helens
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The "Meatball" formation in Ape Cave Lava Tube. It was formed when a lava ball, floating downstream on the lava flow, got stuck in a narrow section of the tube.