HydroBASINS lev08 watershed · #7080476920
Bassin de Middle Fork 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
845,8km²
Upstream area
845,8km²
Discharge
2,21m³/s
Mean elev.
1 647m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- OwyheeIdaho · United States601.4 km²71.0% of basin
- 245.8 km²29.0% of basin
8 intersecting protected areas
North Fork Owyhee
IUCN IbWilderness Area
99.60 km² overlap
North Fork Owyhee River
IUCN VDesignated - Wild
18.46 km² overlap
North Fork Owyhee River
IUCN VDesignated - Wild
12.40 km² overlap
North Fork Owyhee River
IUCN VDesignated - Recreational
6.92 km² overlap
Owyhee River Canyon
IUCN IbWilderness Study Area
0.94 km² overlap
Owyhee River
IUCN IbWilderness Area
0.92 km² overlap
Owyhee River
IUCN VDesignated - Wild
0.34 km² overlap
North Fork Owyhee River
IUCN VDesignated - Recreational
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
912 distinct species · 5 972 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Middle Fork Owyhee River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 113 interactions GloBI sur 4 types (connectance 14.5%, filtre Serrano α=0.2). 19 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°
6,3°C
Annual rain
339mm
Moisture idx (CMI)
-0,68
Runoff
83mm/an
PET
1 079mm
AET
292mm
Mean slope
5,0°
Water table
1 291cm
Forest
33%
Crops
1%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)