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Ape Cave
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, at 13,042 feet (3,975 m). Ape Cave is a popular hiking destination with beautiful views of the Mount St. Helens lahar region.
This description uses material from the Wikipedia article on Ape Cave and is licensed under the Creative Commons Attribution-ShareAlike License (view authors).
Tags
Nature Hiking Scenic Views Outdoor Adventure Adventure Travel National Parks Hiking Trails Outdoor Recreation Nature Walks Family-Friendly Activities Pacific Northwest Caving Cave Exploration Geological Wonders Nature Trail Underground Exploration Washington State National Monuments