HydroBASINS lev08 watershed · #7080419820
Bassin de North Fork John Day 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 : Grant, Morrow, Wheeler
Sub-basin area
1 641,4km²
Upstream area
6 771,7km²
Discharge
37,42m³/s
Mean elev.
1 188m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Middle Fork John Day River2035 km²
- Bassin de Ditch Creek540 km²
3 dept-equivalent regions (GADM L2)
- Grant1400.9 km²85.2% of basin
- Morrow221.9 km²13.5% of basin
- Wheeler22.3 km²1.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
788 distinct species · 7 864 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 North Fork John Day River : 25 espèces reliées par 114 interactions GloBI sur 4 types (connectance 17.1%, filtre Serrano α=0.2). 12 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°
6,8°C
Annual rain
425mm
Moisture idx (CMI)
-0,58
Runoff
108mm/an
PET
1 021mm
AET
364mm
Mean slope
9,2°
Water table
929cm
Forest
41%
Crops
6%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)