Cryptoquip Answer for 02/05/2018

EOXNJ XJNMUV UB DJXFOBXUWS SKOS GUVSOMVW O DEJSKUXO UB HUFJH, GMXGTEOX KOEEW: O XUSTVHXO.

TODAY’S CLUE: X = R

ANSWER: LARGE REGION OF PERMAFROST THAT CONTAINS A PLETHORA OF DOMED, CIRCULAR HALLS: A ROTUNDRA.