Audna or Audnedalselva is a
river
A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...
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 ...
. The long river runs from the lake Grindheimsvatnet, just north of the village of
Byremo in
Lyngdal
is a List of municipalities of Norway, municipality in Agder county, Norway. It is located in the Traditional districts of Norway, traditional district of Lister Region, Lister. The administrative centre of the municipality is the town of Alleen ...
municipality, south through the
Audnedalen valley to its mouth at the
Snigsfjorden in
Lindesnes
Lindesnes () is a List of municipalities of Norway, municipality in Agder county, Norway. It is located in the Traditional districts of Norway, traditional district of Sørlandet. The administrative centre of the municipality is the town of Manda ...
municipality. The mouth is located about southwest of the village of
Vigeland. The river has a
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, ...
that covers . The river runs through two lakes:
Øvre Øydnavatnet and
Ytre Øydnavatnet
Ytre Øydnavatnet is a lake in the municipality of Lyngdal in Agder county, Norway. The lake is located along the river Audna, just south of the lake Øvre Øydnavatnet. The lake sits at an elevation of above sea level. The long lake lies ...
.
The river is regulated for
hydroelectric power
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 ...
with a total of eight power plants along the river and its tributaries. Together, the river produces an average annual production (2015) of of electricity.
See also
*
List of rivers in Norway
The following are the 19 longest rivers of Norway, ranked by length:
# Glomma,
# Tana,
# Pasvikelva and Ivalo, (109 km in Norway)
# Numedalslågen,
# Gudbrandsdalslågen and Vorma,
# Drammensvassdraget (Drammenselva,
# Hallingda ...
References
Lyngdal
Lindesnes
Rivers of Agder
Rivers of Norway
{{Agder-geo-stub