HydroBASINS lev08 watershed · #7080434410
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 2 administrative regions : Campbell, Johnson
Sub-basin area
857,8km²
Upstream area
11 335,4km²
Discharge
13,16m³/s
Mean elev.
1 370m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Powder River986 km²
- Bassin de Powder River443 km²
2 dept-equivalent regions (GADM L2)
- Johnson637.9 km²74.2% of basin
- Campbell221.6 km²25.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
265 distinct species · 2 786 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 Powder River : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 127 interactions GloBI sur 4 types (connectance 16.3%, filtre Serrano α=0.2). 14 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
334mm
Moisture idx (CMI)
-0,68
Runoff
44mm/an
PET
1 048mm
AET
291mm
Mean slope
3,2°
Water table
642cm
Forest
0%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)