HydroBASINS lev08 watershed · #7080415920
Bassin de Middle Fork Salmon 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 : Custer, Lemhi, Valley
Sub-basin area
136,9km²
Upstream area
4 017,9km²
Discharge
44,29m³/s
Mean elev.
1 958m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Middle Fork Salmon River2098 km²
- Bassin de Loon Creek921 km²
3 dept-equivalent regions (GADM L2)
- ValleyIdaho · United States83.0 km²60.5% of basin
- LemhiIdaho · United States54.1 km²39.5% of basin
- CusterIdaho · United States0.0 km²0.0% of basin
3 intersecting protected areas
Wilderness
136.94 km² overlap
Wild and Scenic River
10.18 km² overlap
Loon Creek Ranch
IUCN VOther
0.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
81 distinct species · 209 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Middle Fork Salmon River : 39 espèces reliées par 53 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 3 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°
2,3°C
Annual rain
476mm
Moisture idx (CMI)
-0,46
Runoff
303mm/an
PET
904mm
AET
406mm
Mean slope
23,7°
Water table
886cm
Forest
89%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)