HydroBASINS lev08 watershed · #7080430570
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 7 administrative regions : Dewey, Faulk, Hughes, Hyde, Potter +2
Sub-basin area
2 709,3km²
Upstream area
612 896,6km²
Discharge
964,8m³/s
Mean elev.
549m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cheyenne River1216 km²
- Bassin de Missouri River582 km²
7 dept-equivalent regions (GADM L2)
- 1466.0 km²54.0% of basin
- 508.4 km²18.7% of basin
- Hughes368.1 km²13.6% of basin
- Potter337.5 km²12.4% of basin
- Hyde29.8 km²1.1% of basin
- 5.3 km²0.2% of basin
- Dewey0.0 km²0.0% of basin
26 intersecting protected areas
Potter County
IUCN VWaterfowl Production Area
45.20 km² overlap
Sully County
IUCN VWaterfowl Production Area
19.76 km² overlap
Reserve Program
5.35 km² overlap
Stone
IUCN VLake
4.50 km² overlap
Cottonwood
IUCN VLake
4.27 km² overlap
Oahe Downstream
IUCN VRecreation Area
3.79 km² overlap
Hyde County
IUCN VWaterfowl Production Area
1.76 km² overlap
State Wildlife Management Area
1.65 km² overlap
Little Bend
IUCN VRecreation Area
1.63 km² overlap
17 more protected areassorted by overlap area
State Wildlife Management Area
1.59 km² overlap
Potts Dam
IUCN VState Wildlife Management Area
1.42 km² overlap
Hughes County
IUCN VIWaterfowl Production Area
1.30 km² overlap
Cow Creek
IUCN VRecreation Area
1.10 km² overlap
Sully County
IUCN VIWaterfowl Production Area
1.08 km² overlap
State Wildlife Management Area
0.93 km² overlap
Faulk County
IUCN VWaterfowl Production Area
0.66 km² overlap
Spring Creek
IUCN VRecreation Area
0.60 km² overlap
Okobojo Point
IUCN VRecreation Area
0.55 km² overlap
Chantier Creek
IUCN VRecreation Area
0.40 km² overlap
Onida
IUCN VState Wildlife Management Area
0.33 km² overlap
Oahe West Shore
IUCN VRecreation Area
0.27 km² overlap
Peoria Flats
IUCN VRecreation Area
0.12 km² overlap
Wildlife Management Area
0.11 km² overlap
East Shore
IUCN VRecreation Area
0.05 km² overlap
Laframboise Island
IUCN VNature Area
0.03 km² overlap
Sully
IUCN VLake
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 122 distinct species · 98 240 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 : 21 espèces reliées par 71 interactions GloBI sur 3 types (connectance 16.3%, filtre Serrano α=0.2). 9 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°
7,6°C
Annual rain
445mm
Moisture idx (CMI)
-0,57
Runoff
57mm/an
PET
1 029mm
AET
384mm
Mean slope
1,1°
Water table
184cm
Forest
5%
Crops
65%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)