Virtual Guidebook to Yellowstone and Northern Wyoming
Mud Volcano
Yellowstone National Park Wyoming


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Dragon's Mouth Spring

(June 29, 2000)


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The Mud Volcano, half destroyed by its own eruptions

(June 29, 2000)


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Sour Lake, something between a hot spring and a mud pot

(June 29, 2000)


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The Churning Cauldron, living up to its name

(June 29, 2000)


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A new fumarole has appeared in the Mud Volcano parking lot

(June 29, 2000)


Next Locality: Yellowstone Lake