Highlight • Cave
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Skull Cave is a fascinating natural monument located within the Lava Beds National Monument in northeastern California, at an elevation of approximately 1391 meters. This unique cave is a remnant of three ancient lava tubes, stacked one on top of the other, formed by volcanic flows between 10,500 and 65,000 years ago. It is renowned for its spacious interior and a distinctive year-round ice floor on its lower level, offering a tangible connection to the region's volcanic past.
Visitors consistently…
This Highlight is in a protected area
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Lava Beds Wilderness
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April 3, 2023
Hiking

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Best routes near Skull Cave

1
hikers
16.9km
04:24
120m
120m
Hike the moderate 10.5 miles (16.9 km) Three Sisters Loop in Lava Beds National Monument, featuring volcanic terrain and Skull Cave.
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Elevation 1,390 m
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While Skull Cave is accessible year-round, the best time to visit often depends on your preference. The cave maintains a cool temperature due to its year-round ice floor, making it a refreshing escape during warmer months. Guided tours are typically available during the summer, which can enhance the experience. However, winter visits offer a unique perspective, though conditions outside the cave in Lava Beds National Monument can be colder.
Skull Cave is considered one of the most family-friendly and least challenging caves in Lava Beds National Monument. Its spacious interior is comfortable for most visitors, and you can walk upright on the main path. However, there is a steep staircase leading down to the year-round ice floor, which might be challenging for very young children or individuals with significant mobility issues. Sturdy footwear is highly recommended for everyone.
Yes, permits are required to enter Lava Beds National Monument, but they are free. You can pick them up at the visitor center upon arrival. There are no additional fees specifically for Skull Cave itself, beyond the park entrance permit.
Due to the year-round ice floor, the cave can be quite cool, even in summer. It's advisable to bring a light jacket or sweater. Sturdy, closed-toe shoes with good traction are essential, especially for navigating the metal stairway and potentially slippery areas near the ice. While the cave is spacious, a flashlight or headlamp is always recommended for better visibility and to appreciate the geological features.
Exploring Skull Cave usually takes between 30 minutes to an hour, depending on your pace and how much time you spend observing the unique features like the ice floor and lava tube formations. It's a relatively short but impactful exploration.
Generally, pets are not allowed inside caves within Lava Beds National Monument, including Skull Cave, to protect the delicate cave ecosystems and for visitor safety. On surface trails, dogs are typically permitted on a leash, but it's always best to check the latest regulations with the National Park Service directly or at the visitor center upon arrival.
Skull Cave is located approximately 2.4 miles from the Lava Beds National Monument visitor center. There is a designated parking area directly at the trailhead for Skull Cave, making it easily accessible for visitors arriving by car.
Skull Cave is a remarkable example of a lava tube system, formed by ancient volcanic flows. Its most distinctive features include being a remnant of three large lava tubes stacked one on top of the other, and its famous year-round ice floor on the lower level. This ice forms from cold winter air trapped within the cave, creating a unique subterranean environment.
Yes, Lava Beds National Monument is home to over 700 caves, many of which are lava tubes. After exploring Skull Cave, you might consider visiting other accessible caves like Mushpot Cave (the only lighted cave), Sentinel Cave, or Indian Well Cave, each offering a different experience. The monument also features historical sites related to the Modoc War and scenic overlooks.
Lava Beds National Monument, and by extension Skull Cave, is located in a relatively remote area. Public transportation options are very limited or non-existent. Visitors typically access the monument by private vehicle. It's recommended to plan for personal transportation when visiting.
Lava Beds National Monument is a wilderness area with limited commercial services. There are no cafes, pubs, or restaurants directly within the monument. For accommodation, there is a campground available within the park. For other services, including dining and lodging, visitors typically need to travel to nearby towns such as Tulelake, Merrill, or Klamath Falls, which are a drive away.