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
Trees blown down by the force of the May 18, 1980 eruption blast. The area shown is north of Johnston Ridge Observatory
Entrance to Ape Cave, a lava tube formed 2000 years ago, from an eruption of Mt. St. Helens
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.