mudpot - lassen volcanic national park

mudpot - lassen volcanic national park, boiling, bubbling, geothermal, mud, mud pool

Bubbling mudpot in the Lassen Volcanic National Park (California).­

A hot geothermal vent (fumarole) causes the mud pool to bubble.­ This is a common feature in volcanic areas.­
View more photos of mudpots.

For more info about mudpots, read en.­wikipedia.­org/­wiki/­Mudpot.

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Volcanic Areas of the Pacific North-West
Lassen Peak Highway, California, USA