HotPrimitive

Fumaroles

CA

About Fumaroles

Fumaroles in California offer a raw, elemental hot spring experience where steam vents and bubbling, boiling pools create a dramatic natural scene. This primitive site features two main hot water vents spaced about 200 feet apart, immersing you in the geothermal energy beneath the surface as you soak or explore.

Getting There

Reaching Fumaroles requires a moderate hike of 15 to 60 minutes, with parking limited and located about 90 minutes from the springs on foot. The trail meanders through rugged terrain, rewarding those who make the journey with an up-close encounter with California's distinctive geothermal features.

What to Expect

Expect a natural, rustic atmosphere with two pools emerging amid steaming fumaroles and a boiling pool that adds to the fiery ambiance. The water temperatures vary, and you’ll find no developed facilities, lending an adventurous vibe that demands respect for the fragile environment.

Tips for Visitors

Visit year-round, but prepare for changing weather on the trail and minimal shade by the springs. Bring sturdy hiking shoes, plenty of water, and be ready for primitive conditions, including no restrooms or amenities. Clothing is optional here, and since fees are unknown, carry cash just in case local regulations apply.

Last updated December 21, 2025
Fumaroles

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Access

Moderate Hike

90 min from parking

Parking

Limited

Fee

Unknown

Cell Service

Unknown

Best Season

Year Round

Clothing

Clothing Optional

Pools

2 pools

Nearby Springs

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