HydroBASINS lev08 watershed · #7080414480
Bassin de Big Creek
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 : Baker, Union
Sub-basin area
225,8km²
Upstream area
225,8km²
Discharge
1,58m³/s
Mean elev.
1 295m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Baker114.7 km²50.7% of basin
- Union111.6 km²49.3% of basin
1 intersecting protected areas
Powder River
IUCN VDesignated - Scenic
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
400 distinct species · 6 301 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Creek : 32 espèces reliées par 74 interactions GloBI sur 5 types (connectance 9.0%, 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°
5,4°C
Annual rain
443mm
Moisture idx (CMI)
-0,53
Runoff
223mm/an
PET
966mm
AET
380mm
Mean slope
8,3°
Water table
598cm
Forest
60%
Crops
6%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)