Just before the confluence, the river braids for nearly , forming a zone called Rapaselet. The most noted of the deltas – and an emblem of the park – is the Laitaure delta ("Laitauredeltat"), which the river forms as it connects with Lake Laitaure. The other significant rivers correspond to the principal valleys listed above. Most of them make up the drainage basin of Lesser Lule River. The rivers in the north part of the park flow into Lake Akkajaure, in the Stora Sjöfallet National Park, forming part of the hydrographic network of Lule älv.