Stock Photo - Kultsjön at Klimfjäll. Vilhelmina kommun. . Vilhelmina municipality is a municipality in Västerbotten County in the province of Lapland in Sweden. Klimpfjäll is nestled among the mountain birches just below Kalfjället and next to the fish-rich Kultsjön. . Kultsjön (Sami Gåaltoe) is a long narrow lake in Vilhelmina municipality in Lapland that is part of the Šngermanälven main catchment area. The lake is 129.8 meters deep, has an area of 53.4 square kilometers and is 542.4 meters above sea level. It is regulated for hydropower purposes. . The lake is located upstream of Malgomaj in Vilhelmina municipality, between Saxnäs, Fatmomakke church and Marsfjället.