HydroBASINS lev08 watershed · #7080376080
Bassin de Touchet 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 : Columbia, Walla Walla
Sub-basin area
373,4km²
Upstream area
964,3km²
Discharge
3,13m³/s
Mean elev.
616m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- 206.8 km²55.3% of basin
- Columbia167.5 km²44.7% of basin
7 intersecting protected areas
Ford
IUCN Not AssignedConservation Easement
0.59 km² overlap
McCaw
IUCN Not AssignedConservation Easement
0.35 km² overlap
Hughes
IUCN Not AssignedConservation Easement
0.21 km² overlap
Carpenter
IUCN Not AssignedConservation Easement
0.17 km² overlap
Martin
IUCN Not AssignedConservation Easement
0.13 km² overlap
Karl
IUCN Not AssignedConservation Easement
0.06 km² overlap
Chatham
IUCN Not AssignedConservation Easement
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 264 distinct species · 63 936 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Touchet River : 26 espèces reliées par 74 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 12 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°
9,6°C
Annual rain
572mm
Moisture idx (CMI)
-0,44
Runoff
98mm/an
PET
1 033mm
AET
470mm
Mean slope
7,8°
Water table
789cm
Forest
73%
Crops
62%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)