HydroBASINS lev08 watershed · #7080420420
Bassin de Snake River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Baker, Washington
Sub-basin area
604,5km²
Upstream area
163 925km²
Discharge
748,66m³/s
Mean elev.
1 145m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Snake River768 km²
- Bassin de Burnt River136 km²
2 dept-equivalent regions (GADM L2)
- WashingtonIdaho · United States381.8 km²63.0% of basin
- Baker224.0 km²37.0% of basin
2 intersecting protected areas
Rocking M
IUCN Not AssignedConservation Easement
6.49 km² overlap
Henley Basin
IUCN VWildlife Habitat Area
3.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
536 distinct species · 2 381 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Snake River : 28 espèces reliées par 145 interactions GloBI sur 6 types (connectance 13.4%, filtre Serrano α=0.2). 19 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
6,8°C
Annual rain
444mm
Moisture idx (CMI)
-0,57
Runoff
280mm/an
PET
1 048mm
AET
378mm
Mean slope
16,8°
Water table
741cm
Forest
39%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)