A small part of the very far eastern edge of the lake crosses over into Midt-Telemark Municipality.

The 16.49-square-kilometre (6.37 sq mi) lake is part of the Skien watershed.

According to local folklore, Selma the sea serpent (Norwegian: Seljordsormen) lives in the lake.

[2] The village of Seljord is located on the northwestern end of the lake.

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