HydroBASINS lev08 watershed · #7080364580
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 5 administrative regions : Broadwater, Gallatin, Jefferson, Lewis and Clark, Meagher
Sub-basin area
3 667,6km²
Upstream area
41 525km²
Discharge
168,63m³/s
Mean elev.
1 557m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sixteen Mile Creek1368 km²
- Bassin de Missouri River245 km²
5 dept-equivalent regions (GADM L2)
- 2927.9 km²79.6% of basin
- 462.9 km²12.6% of basin
- Jefferson258.9 km²7.0% of basin
- 17.8 km²0.5% of basin
- Gallatin9.5 km²0.3% of basin
4 intersecting protected areas
Easement
19.22 km² overlap
Cabin Gulch
IUCN IaResearch Natural Area
9.79 km² overlap
Black Sage
IUCN IbWilderness Study Area
5.08 km² overlap
Reserve Program
0.30 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 437 distinct species · 93 957 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 : 20 espèces reliées par 70 interactions GloBI sur 3 types (connectance 18.5%, filtre Serrano α=0.2). 8 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°
5,2°C
Annual rain
384mm
Moisture idx (CMI)
-0,57
Runoff
108mm/an
PET
926mm
AET
335mm
Mean slope
8,4°
Water table
499cm
Forest
53%
Crops
17%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)