Lysakerelven

Lysakerelven Lysakerelva, Fåd (old Norse), meaning "border"
A quiet section of the river
Etymology	named after the farm Lysaker
Location
Country	Norway
Region	Østlandet
District	Viken
Municipality	Oslo and Bærum
Physical characteristics
Source	Bogstadvannet
• location	Oslo, Norway
• coordinates	59°58′01″N 10°37′14″E / 59.9670622°N 10.6206894°E / 59.9670622; 10.6206894
• elevation	145 m (476 ft)
Mouth	Lysakerfjorden
• location	Lysaker, Akershus, Norway
• coordinates	59°54′41″N 10°38′30″E / 59.9114493°N 10.6417608°E / 59.9114493; 10.6417608
• elevation	0 m (0 ft)
Length	7.4 km (4.6 mi)
Basin size	178 km2 (69 sq mi)
Discharge
• average	4.0 m3/s (140 cu ft/s)
• minimum	0.5 m3/s (18 cu ft/s)
• maximum	80 m3/s (2,800 cu ft/s)
Basin features
River system	Oslomarkvassdragene, more specifically Sørkedalsvassdraget

Lysakerelven (also known as Lysakerelva, English: Lysaker River^[1][2]) is a river in Norway that forms the boundary between the municipalities of the capital city of Oslo and Bærum.

The river by this name has its source in Bogstadvannet, though the source is further up, at Langlivann, and Søndre and Nordre Heggelivann in Oslomarka, the forests surrounding Oslo. Consequently, it is considered part of Oslomarkvassdragene, the river system flowing through these forests, and more specifically Sørkedalsvassdraget, the valley above Bogstadvannet. It flows out into Lysakerfjorden, part of Oslofjorden near Lysaker.^[3][4]