Lava River Cave: A Subterranean Wonder

The Lava River Cave, also known as Lava Tube, presents a remarkable opportunity to explore an ancient underground corridor shaped by flowing molten rock. Created by a volcanic eruption from a vent near Hart Prairie, the cave's formation began when the outer layers of lava hardened, forming a tube while the molten center continued to flow. Once the eruption ceased, the remaining lava cooled, leaving behind a unique tunnel for exploration.Discovered in 1915 by lumber workers, the cave quickly became a local curiosity. Homesteaders even harvested ice from the cave's entrance for refrigeration in the early 20th century. Today, the Lava River Cave offers a fascinating journey through geological history.The cave's interior maintains a consistently cool temperature, ranging from 35° to 45° Fahrenheit year-round. Visitors should dress warmly and wear sturdy shoes for navigating the uneven and rocky terrain. It's also essential to bring multiple light sources, as the cave is completely dark. The cave floor exhibits ripple marks and splashdowns, providing evidence of the ancient lava flow.While the cave is open year-round, access may be limited during winter months due to road closures. Forest Roads 245 and 171 are often closed because of snow and muddy conditions, requiring a longer hike, ski, or snowshoe to reach the cave entrance.