Cold Boiling Lake

Mineral, California

Cold Boiling Lake Professional Review and Guide

"Cold Boiling Lake is unique in this volcanic park for its subtlety. It lies quietly in its alpine basin, surrounded by a still forest and black-streaked dacite cliffs. Its shores are placid and its waters inviting—you may wonder, as I did, how this seemingly normal tarn could be in any way volcanic. Then, you see them: tiny bubbles gurgling relentlessly among the grasses in the lake before bursting noiselessly on the surface. Caused by the gases escaping Lassen’s turbulent innards, the bubbles are a relatively benign reminder that indeed, you are standing on the slopes of a volcano. Highlights: This easy trek leads to an odd, but lovely, bubbling lake."

Cold Boiling Lake Reviews

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An easy little trot from the Kings Creek Picnic area. One very small and accessible area of the lake exhibits the bubbling gasses which give the lake its name. (Note: we returned to Cold Boiling Lake on 8/24 while doing the Bumpass Hell to Kings Crk Picnic area hike. The size of the bubbling area has visibly shrunk in size in just one month, as water levels lower towards the end of summer.)
Cold Boiling Lake Trail begins at the last parking lot for the Kings Creek picnic area. It begins with an easy uphill section and then levels off for the rest of the way to Cold Boiling Lake. It is very easy for all ages and the trail leads through an area of twisted pines that I think are White-bark pines. They naturally twist in various directions and shapes. The trail is partially in the shade and even though it was a hot day we hiked it, we were comfortable. Their are other trails that lead beyond Cold Boiling Lake, including a back way to get into the Bumpass Hell area if you want to continue hiking in this area.

Cold Boiling Lake Photos

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Trail Information

Nearby City
Elevation Gain
Trail Type
Skill Level
Day hike
Best July to September
7,380 feet
Trailhead Elevation
7,420 feet
Top Elevation
Lassen Volcanic National Park
Local Contacts
USGS Reading Peak; Lassen Volcanic National Park maps by the National Park Service, Earthwalk Press, and Wilderness Press; USDAFS Lassen National Forest
Local Maps

Activity Feed

Jun 2018