The Lava River Cave is a remarkable geological wonder located in Oregon, known for its stunning lava tube formations. It is the longest continuous lava tube in the United States, extending approximately 7,000 feet long. Formed over 80,000 years ago during a volcanic eruption, this natural cave provides a unique glimpse into the Earth’s ...

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.

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 …

Oct 21, 2021 · Lava River National Recreation Trail #3540 Located near the Dee Wright Observatory , this paved interpretive trail offers a unique half-mile hike through lava that flowed from Yapoah Crater approximately 2,000 to 2,700 years ago.

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.

The proper name for the Tubes is actually Lava River Cave, and about 700,000 years ago it was literally a river of lava that formed a mile-long cave/tube.

Jan 2, 2025 · The Lava River Cave, located in the Coconino National Forest, is a testament to Arizona’s fiery past. Formed roughly 700,000 years ago by a volcanic eruption, this mile-long lava tube is like nature’s own time capsule.

Location: In Willamette National Forest at McKenzie Pass on SR 242, W of Sisters. Located near the Dee Wright Observatory, this paved interpretive trail offers a unique half-mile hike through lava that flowed from Yapoah Crater approximately 2,000 to 2,700 years ago.

The observatory is a trailhead for a short and informative paved walk through the lava beds. Along this route you'll find many interpretive signs that denote significant geological structures and the rich natural history of the area. The observatory has good parking and clean restrooms.

Interactive map of Lava River National Recreation Trail home » Oregon » Deschutes County » Lava River National Recreation Trail » Map Share this trail: