HydroBASINS lev08 watershed · #7080419260
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 : Dewey, Sully
Sub-basin area
582,1km²
Upstream area
544 978,3km²
Discharge
907,9m³/s
Mean elev.
555m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 11 basins
- Bassin · #70800751202253 km²
- Bassin · #70800782701315 km²
- Bassin · #7080078520727 km²
- Bassin · #7080080380589 km²
- Bassin · #7080078280432 km²
- + 6 more
2 dept-equivalent regions (GADM L2)
- Dewey476.3 km²81.7% of basin
- 107.0 km²18.3% of basin
2 intersecting protected areas
Bush's Landing
IUCN VRecreation Area
0.37 km² overlap
Little Bend
IUCN VRecreation Area
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
187 distinct species · 425 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 : 26 espèces reliées par 115 interactions GloBI sur 4 types (connectance 14.0%, filtre Serrano α=0.2). 15 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°
7,7°C
Annual rain
434mm
Moisture idx (CMI)
-0,57
Runoff
60mm/an
PET
1 012mm
AET
376mm
Mean slope
2,2°
Water table
240cm
Forest
28%
Crops
14%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)