The Malwathu Oya ( si, මල්වතු ඔය Malwathu Oya, ta, அருவி ஆறு Aruvi Aru), at long, is the second longest river in
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
. The river originates in the North Central Province of Sri Lanka and enters the sea on the northwest coast, into the Gulf of
Mannar Mannar may refer to the following places:
India
* Mannar, Alappuzha, a town in Chengannur Taluk, Kerala
Sri Lanka
* Mannar District, one of 25 districts in Sri Lanka
** Mannar Island, an island within the district
**Mannar Bridge, a bridge connect ...
, near
Vankalai. It is a seasonal river that spans over 164 kilometers through paddy and forest lands, which are used by the inhabitants to cultivate for their survival.
[P.A.C.T. Perera, T.V. Sundarabarathy, T. Sivananthawerl, U. EdirisingheSeasonal variation of water quality parameters in different geomorphic channels of the upper Malwathu Oya in Anuradhapura, Sri LankaTrop. Agric. Res., 25 (2014), pp. 158-170]
The river basin covers an area of (with a length of , a maximum width of at an average height of above sea level). The average annual rainfall in the basin area is . The Ritigala mountain range, which comprises four main peaks (the highest of which is over high), in the upper reaches of the river, serves as the main catchment.
Tributaries
* Kanadara Oya
* Maminiya Oya
* Kadahatu Oya
* Kal Aru
* Narivili Aru
See also
*
List of rivers in Sri Lanka
References
{{SriLanka-river-stub
Rivers of Sri Lanka
Bodies of water of Mannar District
Gulf of Mannar