HydroBASINS lev08 watershed · #7080479810
Bassin de Owyhee 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 : Malheur, Owyhee
Sub-basin area
264,2km²
Upstream area
12 881,1km²
Discharge
16,57m³/s
Mean elev.
1 561m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Owyhee River375 km²
- Bassin de South Fork Owyhee River198 km²
2 dept-equivalent regions (GADM L2)
- 155.1 km²58.6% of basin
- OwyheeIdaho · United States109.5 km²41.4% of basin
7 intersecting protected areas
Owyhee River Canyon
IUCN IbWilderness Study Area
119.90 km² overlap
Owyhee River
IUCN IbWilderness Area
105.58 km² overlap
Owyhee River
IUCN VDesignated - Wild
19.11 km² overlap
Owyhee River
IUCN VDesignated - Wild
11.41 km² overlap
Lookout Butte
IUCN IbWilderness Study Area
2.66 km² overlap
Wild River
0.05 km² overlap
South Fork Owyhee River
IUCN VDesignated - Wild
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
114 distinct species · 158 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 Owyhee River : 26 espèces reliées par 54 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 8 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°
7,0°C
Annual rain
305mm
Moisture idx (CMI)
-0,73
Runoff
62mm/an
PET
1 120mm
AET
263mm
Mean slope
5,7°
Water table
1 240cm
Forest
0%
Crops
1%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)