A mudpool bubble about to burst

Pools of boiling mud at 5000 m

That same elderly buffalo hanging out in the mud volcano area of Yellowstone National Park

Seltún Geothermal Area

Fountain Paint Pot mud pool, Fountain Paint Pots

Fountain Paint Pot Trail, Yellowstone Lower Geyser Basin

location: Yellowstone National Park, Wyoming, United States of America

author: Jan Helebrant

remark: GPS location for rough location only

www.juhele.blogspot.com

license CC0 Public Domain Dedication

Mud bubbles

Te Puia, Rotorua.

The original "Mud Volcano" after which this thermal area is named is now relatively calm but has seen several violent eruptions through its history. Yellowstone National Park.

Geothermal area with boiling mudpools and fumaroles

Craters of the Moon Thermal Area, Taupo

Taken in New Zealand Oct - Nov 2007

Craters of the Moon Thermal Area, Taupo

Evil-smelling, boiling volcanic mud of Hverarönd