The Kamalaku Mountain range stretches up the length of most of the Northern Continent. The Searchers spend the last part of the first season of the anime series wandering them on their way out of the Reno Ruins area, over the mountains and onto the plains (presumably headed east).
They reach the mountains on Episode 23 and it is here that they fight the Mocks and come across Undine's lake. It is also here that Gray Wolf and the Cabaloses have their den at the base of Mt. Salem, the highest peak in the Kamalakus.