From the Sami, Wahlberg had heard that the easiest way to Sulitjelma passed through Vatenbygda above the lakes Nedrevatnet (Lower Lake) and Øvrevatnet (Upper Lake), and further through the narrow Langvann Valley to its end at Mount Ráhpes (Pite Sami: Ráhpesvarre), also known as Rupsi ( 934 meters ).