HydroBASINS lev08 watershed · #7080444650
Bassin de Big Lost 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 1 administrative regions : Butte
Sub-basin area
133,7km²
Upstream area
8 811km²
Discharge
37,66m³/s
Mean elev.
1 522m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Little Lost River2699 km²
- Bassin de Big Lost River410 km²
1 dept-equivalent regions (GADM L2)
- ButteIdaho · United States134.0 km²100.0% of basin
1 intersecting protected areas
Black Canyon
IUCN IbWilderness Study Area
4.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
163 distinct species · 350 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 Big Lost River : 18 espèces reliées par 89 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 18 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°
5,6°C
Annual rain
224mm
Moisture idx (CMI)
-0,79
Runoff
98mm/an
PET
1 065mm
AET
199mm
Mean slope
2,3°
Water table
231cm
Forest
1%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)