Answer: caldera

AnswerCrossword Clue
CALDERAVolcanic crater
CALDERAVolcanic feature
CALDERALava-oozing mouth
CALDERAVolcano's crater
CALDERAVolcanic depression
CALDERALarge volcanic crater (from the Spanish for "kettle").
CALDERADepression at the mouth of a volcano
CALDERACrater lake locale
calderaa large crater
calderalarge, basinlike depression resulting from the explosion or collapse of the center of a volcano