HydroBASINS lev08 watershed · #7080014200
Bassin de Klamath River / Hehlkeek 'We-Roy
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 : Del Norte, Humboldt, Siskiyou
Sub-basin area
1 183,2km²
Upstream area
31 130,4km²
Discharge
595,35m³/s
Mean elev.
620m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 10 basins
- Bassin de Butte Creek1043 km²
- Bassin de Willow Creek987 km²
- Bassin de Trinity River / hun’764 km²
- Bassin de Red Cap Creek707 km²
- Bassin · #7080077790380 km²
- + 5 more
3 dept-equivalent regions (GADM L2)
- Humboldt768.0 km²64.8% of basin
- 415.4 km²35.1% of basin
- 1.4 km²0.1% of basin
8 intersecting protected areas
Siskiyou
IUCN IbWilderness
181.90 km² overlap
Redwood National and State Parks
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
23.59 km² overlap
Redwood National Park
IUCN VMarine Protected Area
8.45 km² overlap
Redwood
IUCN IINational Park
2.71 km² overlap
Smith River, California
IUCN VWild and Scenic River
0.42 km² overlap
Smith River, California
IUCN VWild and Scenic River
0.22 km² overlap
Waukell Creek
IUCN VWildlife Area
0.11 km² overlap
Rock Creek Butte
IUCN IaResearch Natural Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 960 distinct species · 41 415 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Klamath River / Hehlkeek 'We-Roy : 24 espèces reliées par 74 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 13 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°
10,0°C
Annual rain
1 596mm
Moisture idx (CMI)
0,35
Runoff
1 299mm/an
PET
1 032mm
AET
663mm
Mean slope
17,6°
Water table
578cm
Forest
100%
Crops
0%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)