United States California Old Station

Subway Cave Lava Tubes

A naturally formed, subterranean tunnel created by flowing lava, allowing visitors to walk through a volcanic landscape's cooled conduit.
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Tips from the community

Subway Cave is an unusually easy lava tube to explore, at 1,300 feet (1/3 mile) long, and with ample headroom and a rubble-free floor. The U.S. Forest Service has installed concrete stairs, a trail from the parking lot, and interpretive signs explaining the origins of the cave.

michele 3 years ago

Subway Cave Lava Tubes Guides