Botnsvatnet is a lake in Valle Municipality in Agder county, Norway. The lake is located just north of the lakes Rosskreppfjorden and Kolsvatnet and the mountain Urddalsknuten, and it lies to the southeast of the mountain Bergeheii. The village of Valle is located about to the east of the lake. The lake sits at an elevation of above sea level.
See also List of lakes in Aust-Agder List of lakes in Norway
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