HydroBASINS lev08 watershed · #7080366760
Bassin de Clark Fork
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 2 administrative regions : Granite, Powell
Sub-basin area
893,6km²
Upstream area
4 919,1km²
Discharge
21,87m³/s
Mean elev.
1 694m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Clark Fork1119 km²
- Bassin de Little Blackfoot River1070 km²
2 dept-equivalent regions (GADM L2)
- Powell687.2 km²76.7% of basin
- 208.7 km²23.3% of basin
4 intersecting protected areas
Conservation Area
50.87 km² overlap
Powell County
IUCN VWaterfowl Production Area
8.00 km² overlap
Hoodoo Mountain
IUCN IbWilderness Study Area
5.19 km² overlap
Blackfoot Valley
IUCN Not AssignedConservation Area
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
626 distinct species · 5 564 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Clark Fork : 24 espèces reliées par 92 interactions GloBI sur 4 types (connectance 17.4%, 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°
3,3°C
Annual rain
391mm
Moisture idx (CMI)
-0,54
Runoff
187mm/an
PET
877mm
AET
341mm
Mean slope
10,1°
Water table
713cm
Forest
55%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)