Jökulsá í Fljótsdal

Jökulsá í Fljótsdal
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Data
location	Iceland
River system	Jökulsá á Brú
Drain over	Lagarfljót  → Jökulsá á Brú  → Héraðsflói
source	Eyabakkajokull
Source height	700  m
muzzle	Lagarfljót coordinates: 65 ° 4 ′ 37 ″  N , 14 ° 50 ′ 20 ″  W 65 ° 4 ′ 37 ″  N , 14 ° 50 ′ 20 ″  W.
Mouth height	40  m
Height difference	660 m
Bottom slope	12 ‰
length	56 km
Left tributaries	Outlet from the Kárahnjúkar power plant
Right tributaries	Kelduá
Reservoirs flowed through	Ufsalón

The Jökulsá í Fljótsdal is a glacial river in eastern Iceland and the largest tributary of Lake Lagarfljót .

The river has its source at Eyabakkajökull , a glacier tongue of Vatnajökull , east of Brúarjökull .

In the upper reaches, this river is dammed to the small Ufsalón, which belongs to the Kárahnjúkar power plant . About 10 kilometers before the mouth of the river, the power station's outlet is also filled with the water from the Hálslón Lake, which is used to dammed the Jökulsá á Brú glacial river .