Ladtjojaure, Lake in Norrbotten County, Sweden.

Ladtjojaure is a lake in Norrbotten County near Kebnekaise Mountain Station, where surrounding mountain peaks are reflected in its waters. The lake extends through a remote landscape and connects several valleys in this subarctic region.

Ladtjojaure lies in the Ladtjovagge valley, drained by the Ladtjojåkka, which carries its water through three watercourses over 390 km to the sea. The lake sits in the Torne and Kalix river system Natura 2000 area, and its catchment is mostly forest (42 percent) and bare mountain (40 percent).

The lake carries two names: Ladtjojaure in Swedish and Láddjujávri in Northern Sami, the form used locally. Both refer to the same water in the Láddjuvággi valley, and the Sami name is the one shown on maps of the route between Nikkaluokta and Kebnekaise Mountain Station.

You can reach the lake by hiking trails from Nikkaluokta, with summer boat services available to help with water crossings. Preparation for changeable mountain weather and sturdy footwear is essential for any visit.

The lake sits at 511 metres above sea level, covers 1.84 square kilometres and reaches 14 metres deep. It drains through the Ladtjojåkka stream into the Kalix River system, and the surrounding catchment is mostly forest and bare mountain, with 1.83 square kilometres of water surfaces.