description Terminal Geyser Overview
Terminal Geyser is a geothermal feature in Warner Valley at Lassen Volcanic National Park in California. Despite its name, it is not a true geyser that periodically erupts a column of water; instead, a cold stream flows across a geothermal steam vent. The feature is therefore an example of why volcanic landscapes can contain misleadingly named thermal features, and it is encountered as a trail destination in the Lassen area.
help Terminal Geyser FAQ
Is Terminal Geyser a true geyser?
No. Despite its name, Terminal Geyser does not periodically erupt a column of water.
What is Terminal Geyser actually?
It is a cold stream flowing across a geothermal steam vent. The combination of flowing water and rising steam creates the feature seen in Warner Valley.
Where can you find Terminal Geyser?
Terminal Geyser is in Warner Valley within Lassen Volcanic National Park in California. It is a geothermal feature rather than a conventional erupting geyser.
Why is Terminal Geyser called a geyser if it does not erupt?
The name reflects its geothermal appearance and steam activity, but the feature behaves differently from an erupting geyser. Its defining action is a cold stream crossing a steam vent.
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