Flåsjön, Lake in Strömsund Municipality, Sweden

Flåsjön is a large lake in northern Sweden that stretches across a vast area and ranks among the deepest in the region. The water flows into local river systems and is surrounded by forests and wetland areas.

Flåsjön lies in the Ångermanälven main drainage basin, fed chiefly by the Fånån entering at its western end and drained by the Flåsjöån at the south-east shore. Its water passes through the Hotingsån and Fjällsjöälven before reaching the Ångermanälven, 199 km from the sea. The lake reaches 94 m in depth, covers 110 km² and sits 266.9 m above sea level.

Havsnäs sits on the western shore and Lövberga at the southern end, the two settlements named in the sources along the lake's 40-kilometre length. Water leaves by the Flåsjöån at the south-eastern shore and reaches the Ångermanälven via the Hotingsån and Fjällsjöälven. The lake belongs to the Ångermanälven main catchment area.

The best access is through regional road networks that allow you to explore the area. For activities like fishing and boating, it helps to contact local guides or information centers beforehand.

The lake maintains a perimeter of 125 kilometers and holds specific identification under the EU Surface Water Body Code SE711381-150545.