HydroBASINS lev08 watershed · #7080448300
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 3 administrative regions : Brule, Buffalo, Lyman
Sub-basin area
1 337,4km²
Upstream area
632 618,2km²
Discharge
990,52m³/s
Mean elev.
502m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Missouri River1105 km²
- Bassin de Crow Creek39 km²
3 dept-equivalent regions (GADM L2)
- 886.6 km²66.2% of basin
- 444.2 km²33.2% of basin
- Buffalo9.2 km²0.7% of basin
15 intersecting protected areas
Brule County
IUCN VWaterfowl Production Area
48.42 km² overlap
State Wildlife Management Area
7.32 km² overlap
State Wildlife Management Area
6.88 km² overlap
State Wildlife Management Area
3.70 km² overlap
State Wildlife Management Area
1.18 km² overlap
State Wildlife Management Area
0.78 km² overlap
Hoover
IUCN VState Wildlife Management Area
0.75 km² overlap
Reserve Program
0.56 km² overlap
Reserve Program
0.43 km² overlap
6 more protected areassorted by overlap area
Jorgensen
IUCN VRefuge
0.42 km² overlap
Red
IUCN VLake
0.25 km² overlap
Dude Ranch
IUCN VState Recreation Area
0.12 km² overlap
State Wildlife Management Area
0.04 km² overlap
State Wildlife Management Area
0.02 km² overlap
Red Lake
IUCN VWildlife Management Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
734 distinct species · 13 328 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 : 29 espèces reliées par 93 interactions GloBI sur 4 types (connectance 13.2%, 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°
8,1°C
Annual rain
510mm
Moisture idx (CMI)
-0,53
Runoff
61mm/an
PET
1 075mm
AET
438mm
Mean slope
1,4°
Water table
215cm
Forest
2%
Crops
47%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)