5 Popular Lava Tubes on the Big Island: DIY Guide Tours

Venus Lava Tube Discovery: शुक्र ग्रह के नीचे विशाल खाली लावा सुरंग के संकेत, रडार डाटा ने खोला भूगर्भीय राज

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