Rivière· 28 segments
Yan Oya
Crosses 7 administrative regions : Gomarankadawala, Horowpothana, Kebithigollewa, Kuchchaveli, Morawewa +2
rivière
Total length
77km
Max discharge
24,5m³/s
Max Strahler
4
Segments matched
28
River geography7 admin regions · 0 communes
7 administrative regions crossed (GADM L2)
- HorowpothanaAnuradhapura · Sri Lanka36.0 kmin this dpt
- GomarankadawalaTrincomalee · Sri Lanka18.7 kmin this dpt
- Padavi Sri PuraTrincomalee · Sri Lanka13.2 kmin this dpt
- KuchchaveliTrincomalee · Sri Lanka7.7 kmin this dpt
- MorawewaTrincomalee · Sri Lanka7.2 kmin this dpt
- KebithigollewaAnuradhapura · Sri Lanka3.2 kmin this dpt
- PadaviyaAnuradhapura · Sri Lanka0.0 kmin this dpt
4 intersecting protected areas
Paddawiya
IUCN IbReserved Forest
Pamburugashinna
IUCN IbReserved Forest
Reserved Forest
Simbillakanda
IUCN IbReserved Forest
1 page = 1 named river (aggregation of 28 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydrology (HydroRIVERS v10)
Total length
77km
Max discharge
24,5m³/s
Max Strahler
4
Segments matched
28
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.