HydroBASINS lev08 watershed · #7080340210
Bassin de Missouri 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 : Cascade, Chouteau
Sub-basin area
279,6km²
Upstream area
61 612,3km²
Discharge
245,66m³/s
Mean elev.
1 019m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Belt Creek2075 km²
- Bassin de Missouri River38 km²
2 dept-equivalent regions (GADM L2)
- 231.3 km²82.5% of basin
- 49.1 km²17.5% of basin
1 intersecting protected areas
Benton Lake
IUCN IVNational Wildlife Refuge
1.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
137 distinct species · 530 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Missouri River : 24 espèces reliées par 114 interactions GloBI sur 4 types (connectance 19.2%, filtre Serrano α=0.2). 11 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°
7,1°C
Annual rain
372mm
Moisture idx (CMI)
-0,61
Runoff
121mm/an
PET
951mm
AET
326mm
Mean slope
2,4°
Water table
580cm
Forest
6%
Crops
46%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)