Although it is known and named as a geyser, the Terminal Geyser is more like a steam vent than a true geyser. That does not make it less impressive. To get here, you have to follow a narrow, sometimes not that obvious trail. You can even climb down all the way to the steam that reveals a certain smell like rotten eggs. Always be careful around hydrothermal areas!

🕊️ 𝑻𝒓𝒂𝒗𝒆𝒍𝒆𝒓

July 23, 2019

Hiking

Continuously steaming geyser near the South-eastern corner of the park, close to the PCT. While it may seem to harmlessly only vent some steam most of the time, it is in fact a geyser that can actually erupt with fatally boiling water or worse, so, like with all geothermal areas, practice caution on and particularly off the trail.

Scott

March 29, 2023

Hiking

"For your safety, stay on established trails and boardwalks. Ground in hydrothermal areas can look solid but may actually be a thin crust hiding pools of acidic boiling water or mud. Traveling off-trail in these areas may result in severe injury. Read more about exploring the park hydrothermal areas."
nps.gov/lavo/planyourvisit/hiking_terminal_geyser.htm

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Best routes to Terminal Geyser – Lassen Volcanic National Park

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1. Boiling Springs Lake and Terminal Geyser via the Pacific Crest Trail – Lassen Volcanic National Park

9.23km

02:47

310m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

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2. Butte Pond to Boiling Springs Lake – Pacific Crest Trail – Lassen National Forest

24.8km

07:16

700m

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Hard

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Elevation 1,770 m

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Location: Plumas County, California, United States

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Terminal Geyser – Lassen Volcanic National Park

1. Boiling Springs Lake and Terminal Geyser via the Pacific Crest Trail – Lassen Volcanic National Park

2. Butte Pond to Boiling Springs Lake – Pacific Crest Trail – Lassen National Forest

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