HydroBASINS lev08 watershed · #7080420710
Bassin de 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 2 administrative regions : Grant, Wheeler
Sub-basin area
1 585,4km²
Upstream area
13 827,4km²
Discharge
58,05m³/s
Mean elev.
1 011m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de North Fork John Day River1641 km²
- Bassin de John Day River316 km²
2 dept-equivalent regions (GADM L2)
- Wheeler1519.4 km²95.6% of basin
- Grant69.4 km²4.4% of basin
2 intersecting protected areas
Sutton Mountain
IUCN IbWilderness Study Area
50.35 km² overlap
John Day River
IUCN VDesignated - Recreational
26.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
905 distinct species · 17 770 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 John Day River : 19 espèces reliées par 114 interactions GloBI sur 4 types (connectance 19.2%, filtre Serrano α=0.2). 16 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°
7,9°C
Annual rain
389mm
Moisture idx (CMI)
-0,62
Runoff
107mm/an
PET
1 049mm
AET
334mm
Mean slope
11,7°
Water table
972cm
Forest
23%
Crops
3%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)