HydroBASINS lev08 watershed · #7080476860
Bassin de Illinois 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 4 administrative regions : Curry, Del Norte, Josephine, Siskiyou
Sub-basin area
2 551,1km²
Upstream area
2 551,1km²
Discharge
110,11m³/s
Mean elev.
824m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 2032.4 km²79.5% of basin
- Curry370.7 km²14.5% of basin
- 150.2 km²5.9% of basin
- 1.9 km²0.1% of basin
20 intersecting protected areas
Kalmiopsis
IUCN IbWilderness
250.13 km² overlap
Illinois, Oregon
IUCN VWild and Scenic River
38.32 km² overlap
Illinois, Oregon
IUCN VWild and Scenic River
23.78 km² overlap
Siskiyou
IUCN IbWilderness
22.07 km² overlap
Red Buttes
IUCN IbWilderness
10.91 km² overlap
Buffer
8.51 km² overlap
Wild and Scenic River
7.15 km² overlap
Hoover Gulch
IUCN IaResearch Natural Area
5.30 km² overlap
Illinois, Oregon
IUCN VWild and Scenic River
4.69 km² overlap
11 more protected areassorted by overlap area
Deer Creek Ranch
IUCN VPrivate Conservation
3.31 km² overlap
Eight Dollar Mountain
IUCN VState Natural Area
2.63 km² overlap
Illinois River Forks
IUCN VState Natural Area
1.10 km² overlap
Brewer Spruce I
IUCN IbNo recommendation
0.84 km² overlap
Rough & Ready Creek
IUCN VPrivate Conservation Land
0.45 km² overlap
Rough And Ready Creek
IUCN VPrivate Conservation
0.24 km² overlap
Watershed Protection
0.22 km² overlap
Eight Dollar Mountain
IUCN VPrivate Conservation Land
0.18 km² overlap
Rough And Ready
IUCN VState Natural Site
0.12 km² overlap
Rogue, Oregon
IUCN VWild and Scenic River
0.04 km² overlap
Smith River, California
IUCN VWild and Scenic River
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 989 distinct species · 131 125 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Illinois River : 29 espèces reliées par 97 interactions GloBI sur 4 types (connectance 10.7%, 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°
9,1°C
Annual rain
1 377mm
Moisture idx (CMI)
0,23
Runoff
1 299mm/an
PET
1 036mm
AET
621mm
Mean slope
17,4°
Water table
558cm
Forest
100%
Crops
0%
Urban
0%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)