Boiling mud in the Mud Volcano Area of Yellowstone National Park, Wyoming.

Boiling mud in the Mud Volcano Area of Yellowstone National Park, Wyoming.
Boiling mud in the Mud Volcano Area of Yellowstone National Park, Wyoming.
2021
Boiling mud Volcano Area Yellowstone National Park Wyoming. caldera crater magma volcanic vulcanism geology geological hydrothermal hot springs np geothermal American Wyoming