HydroBASINS lev08 watershed · #7080332570
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 : Garfield, McCone, Valley
Sub-basin area
2 461,7km²
Upstream area
137 358,9km²
Discharge
297,81m³/s
Mean elev.
763m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Missouri River519 km²
- Bassin · #7080339680456 km²
3 dept-equivalent regions (GADM L2)
- 1414.9 km²57.3% of basin
- Valley1053.8 km²42.7% of basin
- 0.0 km²0.0% of basin
6 intersecting protected areas
Charles M. Russell
IUCN IVNational Wildlife Refuge
422.22 km² overlap
National Wildlife Refuge
262.32 km² overlap
National Wildlife Refuge
46.40 km² overlap
Montana
IUCN VIState Trust Lands
35.11 km² overlap
Billy Creek
IUCN IbWilderness Study Area
13.43 km² overlap
Seven Blackfoot
IUCN IbWilderness Study Area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
587 distinct species · 5 145 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 : 30 espèces reliées par 97 interactions GloBI sur 4 types (connectance 11.8%, 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°
6,3°C
Annual rain
313mm
Moisture idx (CMI)
-0,69
Runoff
35mm/an
PET
1 004mm
AET
276mm
Mean slope
3,4°
Water table
446cm
Forest
2%
Crops
3%
Urban
0%
Protected
63%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)