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Lava River Cave, part of the Newberry National Volcanic Monument, offers self-guided exploration of a mile-long lava tube. The cave was one of the first lava tubes to be discovered in Oregon and is the longest one in the state.
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This mile-long lava tube cave was formed roughly 700,000 years ago by molten rock that erupted from a volcanic vent in nearby Hart Prairie. The top, sides and bottom of the flow cooled and solidified first, after which the insides of the lava river continued to flow emptying out the present cave.
The Lava River Cave near Bend, Oregon, is part of the Newberry National Volcanic Monument, which is managed by the United States Forest Service. At 5,211 feet (1,588 m) in length, the northwest section of the cave is the longest continuous lava tube in Oregon.
Lava River Cave, part of the Newberry National Volcanic Monument, offers self-guided exploration of a mile-long lava tube formed approximately 65,000 years ago. Lava River Cave is pitch black and stays near 42F/5.5C year-round.
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Lava River Cave offers self-guided exploration of a mile-long lava tube. It takes approximately 1.5 hours to tour the entire cave. Initial access descends 150 stairs to an uneven floor and can be challenging.
May 19, 2016 · Lava River Cave is one of Oregon’s longest (if not the longest) un-collapsed lava tubes, measuring 5466 feet, so give yourself plenty of time to explore its dark passages. This hike is approximately 2.2 miles round trip with 150 feet of elevation change and takes around 90 minutes to complete.
Aug 21, 2023 · At a little more than a mile, Lava River Cave is Oregon’s longest intact lava tube. It’s also one of the most popular caves to explore in central Oregon.
