Uldalsåna is a
lake
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...
on the border of the municipalities of
Birkenes
Birkenes is a municipality in Agder county, Norway. It is located in the traditional district of Sørlandet. The administrative centre of the municipality is the village of Birkeland, where about half the municipal population lives. Other vill ...
and
Froland
Froland is a List of municipalities of Norway, municipality in Agder counties of Norway, county, Norway. It is part of the Districts of Norway, traditional region of Southern Norway, Sørlandet. The administrative center is the village of Blakst ...
in
Agder
Agder is a counties of Norway, county () and districts of Norway, traditional region in the southern part of Norway and is coextensive with the Southern Norway region. The county was established on 1 January 2020, when the old Vest-Agder and Au ...
county,
Norway
Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...
. It is part of the
Tovdalselva
Tovdalselva (also known as the ''Tofdalselva'', ''Tovdalsåna'', ''Tovdalsåni'', literally: the ''Tov valley river'') is long and is one of the longest rivers in Southern Norway. The river flows through Agder county from the mountains on the nor ...
river
drainage basin
A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...
. On the southeastern end of the lake, there is a
hydroelectric
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energ ...
dam
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aqua ...
which releases water into the waterfall, Hanefoss, on its way down to the lake
Herefossfjorden
Herefossfjorden is a lake in the municipality of Birkenes in Agder county, Norway. The lake is about long and it is part of the Tovdalselva river. The Gauslåfjorden and Uldalsåna lakes flow into Herefossfjorden near the village of Herefo ...
near the village of
Herefoss. The lake is fed by the rivers Rettåna and Skjeggedalsåna. The lake
Nystølfjorden flows into the river Skjeggedalsåna.
See also
*
*
List of lakes in Norway
This is a list of lakes and reservoirs in Norway, sorted by Counties of Norway, county.
For the geography and history of lakes in that country, see Lakes in Norway, including:
*Lakes in Norway#Largest lakes, List of largest lakes in Norway
*L ...
References
{{DEFAULTSORT:Uldalsaana
Lakes of Agder
Birkenes
Froland
Reservoirs in Norway