Rivière· 8 segments
一の沢川
Crosses 5 administrative regions : Ashibetsu, Furano, Hokuryū, Minamifurano, Sapporo
Total length
285km
Max discharge
12,5m³/s
Max Strahler
4
Segments matched
8
River geography5 admin regions · 0 communes
5 administrative regions crossed (GADM L2)
- MinamifuranoHokkaido · Japan8.4 kmin this dpt
- HokuryūHokkaido · Japan5.8 kmin this dpt
- FuranoHokkaido · Japan4.3 kmin this dpt
- AshibetsuHokkaido · Japan3.9 kmin this dpt
- SapporoHokkaido · Japan2.6 kmin this dpt
8 intersecting protected areas
Daisetsuzan
IUCN IINational Park
Shikotsu toya
IUCN IINational Park
Taisetsuzan
IUCN IbForest Ecosystem Reserve
Furano ashibetsu
IUCN VPrefectural Natural Park
Taisetsu and Hidaka
IUCN VGreen Corridor
Jozankei
IUCN IVPrefectural Wildlife Protection Area
Asahi
IUCN IVPrefectural Wildlife Protection Area
Hokudai ichinosawa
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
10 distinct species · 19 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
285km
Max discharge
12,5m³/s
Max Strahler
4
Segments matched
8
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.