Ape Cave is a lava tube located in Gifford Pinchot National Forest just to the south of Mount St. Helens in Washington state. Its passageway is the longest continuous lava tube in the continental United States and the third longest (in total mapped length) lava tube in North America[1] at 2.5 miles (4,023 meters).[2] Ape Cave is a popular hiking destination with beautiful views of the Mount St. Helens lahar region. Lava tubes are an unusual formation in this region, as volcanoes of the Cascade R
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Ape Cave is a lava tube located in Gifford Pinchot National Forest ju…
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Carved by Mount St. Helens lava 🌋, Ape Cave in Washington’s Gifford Pinchot National Forest stays a cool 42°F year-round 🕳️✨ The easier lower cave is about 1.5 miles round trip—bring a jacket and a strong light for this unforgettable underground hike! #Washington #giffordpinchotnationalforest #pacificnorthwest #pnw | The PNW Bucket List
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