HydroBASINS lev08 watershed · #7080015070
Bassin de Elk 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 : Grays Harbor, Pacific
Sub-basin area
430,2km²
Upstream area
430,2km²
Discharge
5,27m³/s
Mean elev.
62m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 298.2 km²69.1% of basin
- 105.5 km²24.5% of basin
14 intersecting protected areas
Elk River
IUCN VNatural Resources Conservation Area
18.36 km² overlap
Marine Protected Area
14.99 km² overlap
Wildlife Area Complex
8.08 km² overlap
Norris Slough
IUCN VPrivate Conservation
4.73 km² overlap
Teal Duck
IUCN VPrivate Conservation
0.94 km² overlap
Cedar River Estuary
IUCN VEstuary
0.64 km² overlap
Three Creeks
IUCN VPrivate Conservation
0.58 km² overlap
Elk River - 103.17 Acres
IUCN VEnvironmental System
0.40 km² overlap
Oyster Island
IUCN VPrivate Conservation
0.31 km² overlap
5 more protected areassorted by overlap area
PCON90
IUCN VPrivate Conservation
0.29 km² overlap
Stafford Creek
IUCN VPrivate Conservation
0.21 km² overlap
Elk River -27.9 Acres
IUCN VEnvironmental System
0.11 km² overlap
Bone Creek
IUCN VPrivate Conservation
0.01 km² overlap
Marine Protected Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 235 distinct species · 188 781 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Elk River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 13.3%, 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°
9,7°C
Annual rain
2 097mm
Moisture idx (CMI)
0,63
Runoff
1 859mm/an
PET
764mm
AET
647mm
Mean slope
5,5°
Water table
181cm
Forest
100%
Crops
0%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)