Ruisseau· 6 segments
玉川
Crosses 2 administrative regions : Oguni, Sekikawa
ruisseau
Total length
296km
Max discharge
6m³/s
Max Strahler
3
Segments matched
6
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- OguniYamagata · Japan20.9 kmin this dpt
- SekikawaNiigata · Japan0.0 kmin this dpt
6 intersecting protected areas
Bandai asahi
IUCN IINational Park
Green Corridor
Iidesan Shuhen
IUCN IbForest Ecosystem Reserve
Iidesan
IUCN IVPrefectural Wildlife Protection Area
Oguni
IUCN IVPrefectural Wildlife Protection Area
Ohanayama
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
52 distinct species · 74 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
296km
Max discharge
6,0m³/s
Max Strahler
3
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.