Rivière· 28 segments
Elwha River
Crosses 2 administrative regions : Clallam, Jefferson
Total length
78km
Max discharge
40,3m³/s
Max Strahler
4
Segments matched
28
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- ClallamWashington · United States38.2 kmin this dpt
- JeffersonWashington · United States22.5 kmin this dpt
14 intersecting protected areas
Olympic National Park
IUCN VMarine Protected Area
Olympic National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
Olympic
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Olympic
IUCN IINational Park
Daniel J. Evans
IUCN IbWilderness Area
Wildlife Area Complex
Little River Tenancy
IUCN Not AssignedConservation Easement
Dry Creek (Lydiard)
IUCN Not AssignedConservation Easement
Elwha Woods
IUCN Not AssignedConservation Easement
5 more protected areassorted by area
Faunce-Hitt
IUCN VPrivate Conservation
Dry Creek Tree Farm
IUCN Not AssignedConservation Easement
Twin Flower I
IUCN Not AssignedConservation Easement
Twin Flower II
IUCN Not AssignedConservation Easement
Twin Flower III
IUCN Not AssignedConservation Easement
1 page = 1 named river (aggregation of 28 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
766 distinct species · 11 978 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Elwha River : 22 espèces reliées par 101 interactions GloBI sur 5 types (connectance 11.7%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
78km
Max discharge
40,3m³/s
Max Strahler
4
Segments matched
28
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.