User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-27125903-20160906180626/@comment-26421638-20160906193232

I guess not...

Seems that is a minor mistake, I cannot find any proof that Zamtrios appears in the Arctic Ridge, but I need a confirmation...

On other hand, Rathian does appear in the Marshlands... She appears as Unstable Enviroment in a couple of quests like Duramboros...