HydroBASINS lev08 watershed · #7080412110
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 3 administrative regions : Campbell, Powder River, Sheridan
Sub-basin area
224,7km²
Upstream area
20 443km²
Discharge
23,89m³/s
Mean elev.
1 174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Powder River272 km²
- Bassin de Powder River174 km²
3 dept-equivalent regions (GADM L2)
- 107.5 km²47.8% of basin
- Campbell63.9 km²28.4% of basin
- Sheridan53.7 km²23.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
63 distinct species · 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 4 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°
7,3°C
Annual rain
394mm
Moisture idx (CMI)
-0,63
Runoff
49mm/an
PET
1 054mm
AET
341mm
Mean slope
5,2°
Water table
750cm
Forest
0%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)