Pältsan, Mountain summit in northern Sweden.

Pältsan is Sweden's northernmost high mountain, rising west of Treriksröset on the Norwegian border. Its highest, middle summit reaches 1,444 m and is flat-topped, mostly a single rock field with steep sides; the southern summit, 1,404 m, is a sharp nunatak that only its western side can be climbed without equipment. A valley about 300 m deep separates the two peaks.

Pältsan's southern peak is a nunatak that protruded above the ice during the last ice age, while the massif's three summits and the deep valley between them were shaped by glacial action. The area around Beálcanvaggi still holds large snowfields and at least two glaciers, evidence of a much larger ice cover not long ago.

The Sami name Bealčán (also written Bealccan) belongs to the mountain the Finns call Pältsa and the Swedes Pältsan. In the Kilpisjärvi legend of Tarujen tunturit, Pältsa is a giant who courts the maiden Malla but loses her to Saana; he arrives uninvited at the wedding with the wizards of the Arctic Sea, whose spell unleashes a glacier that buries him to his ears. Each autumn the fell's slopes repeat that wedding's colours as ruska.

The mountain is best climbed during summer months when snow has melted and trails are fully passable. In winter, reaching the summit requires advanced mountaineering equipment and considerable experience.

The mountain experiences midnight sun in summer months, when the sun never dips below the horizon and remains visible around the clock. In winter, extended darkness blankets the peak when the sun stays hidden and daylight barely breaks through.