A process to expand the national park by an additional 624.6 km2 (241 sq mi) was started in 2009,[2] however it was cancelled in 2015 after local opposition.

Anárjohka national park is located on the interior of the Finnmarksvidda plateau and it includes extensive birch woods, pine barrens, bogs, and lakes.

The northern red-backed vole, a typical Siberian species, is a characteristic inhabitant of the national park.

Salmon, trout, three-spined sticklebacks, grayling, vendace, pike, perch, burbot, and minnows are common.

The meaning of the first element is unknown (but it is also found in the name of the Finnish Lake Inari which translates to the Sami Anárjávri).