HydroBASINS lev08 watershed · #7080386780
Bassin de Jefferson 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 : Broadwater, Gallatin, Jefferson, Madison
Sub-basin area
822,9km²
Upstream area
24 305,5km²
Discharge
66,26m³/s
Mean elev.
1 628m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Boulder River1961 km²
- Bassin de Jefferson River106 km²
4 dept-equivalent regions (GADM L2)
- Madison372.4 km²45.1% of basin
- Jefferson299.4 km²36.3% of basin
- 120.5 km²14.6% of basin
- Gallatin32.6 km²4.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 005 distinct species · 88 401 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 Jefferson River : 21 espèces reliées par 72 interactions GloBI sur 3 types (connectance 19.0%, filtre Serrano α=0.2). 7 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
378mm
Moisture idx (CMI)
-0,58
Runoff
155mm/an
PET
929mm
AET
329mm
Mean slope
9,0°
Water table
506cm
Forest
29%
Crops
12%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)