HydroBASINS lev08 watershed · #7080346030
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 : Blaine, Fergus, Petroleum, Phillips
Sub-basin area
2 213,9km²
Upstream area
107 619,3km²
Discharge
289,26m³/s
Mean elev.
867m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin de Missouri River1047 km²
- Bassin de Missouri River664 km²
- Bassin · #7080081410319 km²
4 dept-equivalent regions (GADM L2)
- Phillips1677.9 km²75.6% of basin
- 325.8 km²14.7% of basin
- 216.4 km²9.7% of basin
- Blaine0.2 km²0.0% of basin
9 intersecting protected areas
Charles M. Russell
IUCN IVNational Wildlife Refuge
569.34 km² overlap
National Wildlife Refuge
97.18 km² overlap
Ul Bend
IUCN IVNational Wildlife Refuge
64.31 km² overlap
National Wildlife Refuge
41.19 km² overlap
National Monument
25.70 km² overlap
Montana
IUCN VIState Trust Lands
16.34 km² overlap
Phillips County
IUCN VWaterfowl Production Area
1.18 km² overlap
Private Conservation
0.42 km² overlap
Private Conservation Land
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 050 distinct species · 41 023 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 : 21 espèces reliées par 68 interactions GloBI sur 4 types (connectance 13.7%, 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
348mm
Moisture idx (CMI)
-0,65
Runoff
9mm/an
PET
1 007mm
AET
304mm
Mean slope
3,7°
Water table
572cm
Forest
10%
Crops
4%
Urban
0%
Protected
42%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)