1) Volcanic landform
Found on
https://www.crosswordclues.com/clue/mudpot
A mudpot — or mud pool — is a sort of acidic hot spring, or fumarole, with limited water. It usually takes the form of a pool of bubbling mud. The acid and microorganisms decompose surrounding rock into clay and mud. The mud of a mudpot takes the form of a viscous, often bubbling, slurry. As the boiling mud is often squirted over the brims of ...
Found on
http://en.wikipedia.org/wiki/Mudpot
an acidic hot spring with limited water supply
Found on
https://www.encyclo.co.uk/local/21786
No exact match found.
