HydroBASINS lev08 watershed · #7080503640
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 5 administrative regions : Burt, Douglas, Harrison, Pottawattamie, Washington
Sub-basin area
1 268,9km²
Upstream area
808 056,2km²
Discharge
1 161,78m³/s
Mean elev.
337m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Soldier River1188 km²
- Bassin de Missouri River65 km²
5 dept-equivalent regions (GADM L2)
- Washington440.8 km²34.7% of basin
- HarrisonIowa · United States410.0 km²32.3% of basin
- 384.5 km²30.3% of basin
- PottawattamieIowa · United States30.2 km²2.4% of basin
- Douglas5.3 km²0.4% of basin
20 intersecting protected areas
Desoto
IUCN IVNational Wildlife Refuge
31.57 km² overlap
Reserve Program
11.19 km² overlap
Boyer Chute
IUCN IVNational Wildlife Refuge
8.84 km² overlap
Reserve Program
3.85 km² overlap
Tyson Bend
IUCN VWildlife Management Area
3.27 km² overlap
Reserve Program
2.53 km² overlap
California Bend
IUCN VWildlife Management Area
1.89 km² overlap
Reserve Program
1.52 km² overlap
Vaile Wetland
IUCN VNature Area
1.14 km² overlap
11 more protected areassorted by overlap area
Missouri Bottoms
IUCN VWetland Area
0.97 km² overlap
Soldier Bend
IUCN VWildlife Management Area
0.92 km² overlap
Nobles Lake
IUCN VWildlife Management Area
0.83 km² overlap
Nolan
IUCN VWetland
0.65 km² overlap
Sawmill Hollow
IUCN VWildlife Area
0.64 km² overlap
Nebraska Land Trust #26
IUCN Not AssignedConservation Easement
0.26 km² overlap
Rand Bar
IUCN VWildlife Management Area
0.26 km² overlap
Saint John's
IUCN VWildlife Management Area
0.20 km² overlap
Fish Lake
IUCN VWildlife Management Area
0.06 km² overlap
Cemetery
0.04 km² overlap
Missouridale
IUCN VWildlife Management Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 292 distinct species · 111 913 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 71 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 6 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°
9,8°C
Annual rain
759mm
Moisture idx (CMI)
-0,28
Runoff
159mm/an
PET
1 057mm
AET
646mm
Mean slope
1,7°
Water table
111cm
Forest
7%
Crops
84%
Urban
1%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)