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Subway Cave

Located in Lassen National Forest off Highway 89, a tenth of a mile from Highway 44, the cave is a lava tube, formed during a lava flow that covered the Hat Creek Valley some 2000 years ago. It extends about 1300 feet.

Subway Cave is a self-guided trail. Subway Cave is the largest accessible tube in the flow. Temperature inside the cave remains a cool 46 degrees year around. Be sure to take a jacket with you. The cave is open late May through October. Subway Cave is closed during the winter months. Visibility in the cave is zero. Take a dependable flashlight with you. There are self-guided trail signs inside. Admission to the cave is free.

Location Hat Creek Ranger District
Fall River Mills California 96028
Phone 530-336-5521
Contact Deb Romberger
Website http://www.r5.fs.fed.us/lassen/hat_creek_subway_cave.htm
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