HydroBASINS lev08 watershed · #7080404530
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 4 administrative regions : Campbell, Corson, Dewey, Walworth
Sub-basin area
615,5km²
Upstream area
526 412,4km²
Discharge
895,78m³/s
Mean elev.
540m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Grand River925 km²
- Bassin de Missouri River15 km²
4 dept-equivalent regions (GADM L2)
- 396.4 km²64.3% of basin
- Dewey113.6 km²18.4% of basin
- 64.6 km²10.5% of basin
- Campbell42.3 km²6.9% of basin
6 intersecting protected areas
Walworth County
IUCN VWaterfowl Production Area
1.33 km² overlap
Indian Creek
IUCN VRecreation Area
1.21 km² overlap
Revheim Bay
IUCN VRecreation Area
0.59 km² overlap
Thomas Bay
IUCN VRecreation Area
0.26 km² overlap
Walth Bay
IUCN VRecreation Area
0.15 km² overlap
Bowdle Beach
IUCN VRecreation Area
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
487 distinct species · 4 348 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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 117 interactions GloBI sur 4 types (connectance 22.2%, 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°
6,6°C
Annual rain
435mm
Moisture idx (CMI)
-0,55
Runoff
64mm/an
PET
967mm
AET
378mm
Mean slope
1,6°
Water table
244cm
Forest
10%
Crops
40%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)