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Location Birkenes and
Froland (Aust-Agder)
Coordinates 58°32′38″N 8°18′15″E / 58.54389°N 8.30417°E / 58.54389; 8.30417Coordinates: 58°32′38″N 8°18′15″E / 58.54389°N 8.30417°E / 58.54389; 8.30417
Primary inflows Rettåna and
Primary outflows Herefossfjorden
Basin countries Norway
Surface area 3.00 km2 (1.16 sq mi)
Shore length1 34.34 km (21.34 mi)
Surface elevation 149 m (489 ft)
References NVE
1 Shore length is not a well-defined measure.

Uldalsåna is a lake in the municipalities of Birkenes and Froland in Aust-Agder county, Norway. It is part of the Tovdalselva river drainage basin. On the southeastern end of the lake, there is a hydroelectric dam which releases water into the waterfall, Hanefoss, on its way down to the Herefossfjorden near the village of Herefoss.[1][2]

See also[edit]


  1. ^ "Uldalsåna" (in Norwegian). yr.no. Retrieved 2010-04-20. 
  2. ^ Store norske leksikon. "Hanefoss" (in Norwegian). Retrieved 2010-04-20.