Qualla: Niland Geyser

Niland Geyser: Introduction

Wed, 01 Apr 2026 00:00:00 GMT

Photo credit Tuxyso, CC BY-SA 3.0. It is not really a geyser. The water is not hot — it measures about 80 degrees Fahrenheit, barely warmer than a swimming pool. There is no geothermal heat source below it, no superheated rock driving water toward the surface. What the Niland Geyser does, which makes it genuinely singular among geological features anywhere on Earth, is move. The pool of bubbling mud and water designated W9 by geologists, and nicknamed the Slow One by locals, has been migrating laterally across the desert floor southeast of the Salton Sea. By 2020 it was traveling at ten feet per month. It does not stop. And it has been heading, with the geological patience of something that operates on its own schedule, toward California State Route 111.

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Image: Tuxyso | CC BY-SA 3.0

Niland Geyser: What Makes It Move

Wed, 01 Apr 2026 00:00:00 GMT

Photo credit Raindrift, CC BY-SA 3.0. The Niland Geyser is one of roughly 33 mudpots and mud volcanoes scattered near the southeastern shore of the Salton Sea, most of them arranged in a line that follows a fault trace. W9 is an outlier from that line — its position off the main alignment is itself unusual. The featu...

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Image: Raindrift | CC BY-SA 3.0

Niland Geyser: The Tilted Channel

Wed, 01 Apr 2026 00:00:00 GMT

Photo credit Rschen7754, CC BY-SA 4.0. Geologists David Lynch and Travis Deane developed a hypothesis to explain why the geyser moves when all other mudpots sit still. They propose that the carbon dioxide travels through the subsurface via a tilted channel, with the gas eroding the upper side of the channel as it rise...

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Image: Rschen7754 | CC BY-SA 4.0

Niland Geyser: The Infrastructure Problem

Wed, 01 Apr 2026 00:00:00 GMT

Photo credit en:User:Epolk Eric Polk, CC BY-SA 2.5. A migrating geological feature becomes an engineering emergency when it migrates toward things people built and depend upon. Kinder Morgan was the first major infrastructure operator to confront the problem directly — the company was forced to reroute the Santa Fe Pacific Pipelin...

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Image: en:User:Epolk Eric Polk | CC BY-SA 2.5

Niland Geyser: Suffocation and Spectacle

Wed, 01 Apr 2026 00:00:00 GMT

Photo credit Rschen7754, CC BY-SA 4.0. The geyser releases enough carbon dioxide to be genuinely dangerous. The gas, heavier than air, settles into the bowl-shaped crater of the mudpot and displaces oxygen at concentrations that can cause rapid suffocation in anyone who enters the low area without precautions. For thi...

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Image: Rschen7754 | CC BY-SA 4.0