HydroBASINS lev08 watershed · #7080420260
Bassin de Powder 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 : Baker
Sub-basin area
1 023,6km²
Upstream area
3 664,8km²
Discharge
27,72m³/s
Mean elev.
1 082m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Powder River309 km²
- Bassin de Big Creek226 km²
1 dept-equivalent regions (GADM L2)
- Baker1025.8 km²100.0% of basin
1 intersecting protected areas
Powder River
IUCN VDesignated - Scenic
1.88 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
943 distinct species · 16 330 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Powder River : 23 espèces reliées par 105 interactions GloBI sur 5 types (connectance 18.7%, filtre Serrano α=0.2). 11 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°
6,9°C
Annual rain
385mm
Moisture idx (CMI)
-0,63
Runoff
255mm/an
PET
1 041mm
AET
331mm
Mean slope
6,7°
Water table
658cm
Forest
22%
Crops
10%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)