Rivière· 58 segments

Grande Ronde River

Crosses 3 administrative regions : Asotin, Union, Wallowa

rivière

Total length

296km

Max discharge

61,6m³/s

Max Strahler

Segments matched

River geography3 admin regions · 0 communes

Parent watershed

hybas-70803927101524 km²

3 administrative regions crossed (GADM L2)

Union
Oregon · United States
158.5 km
in this dpt
Wallowa
Oregon · United States
74.8 km
in this dpt
Asotin
Washington · United States
29.2 km
in this dpt

16 intersecting protected areas

Blue Mountains
IUCN V
Wildlife Area Complex
Grande Ronde, Oregon
IUCN V
Wild and Scenic River
Wenaha
IUCN V
Wildlife Area
Wenaha, Oregon
IUCN V
Wild and Scenic River
Grande Ronde River Segment B
IUCN V
Designated - Wild
Grande Ronde River Segment D
IUCN V
Designated - Recreational
Wallowa River
IUCN V
Designated - Recreational
Cunha
IUCN Not Assigned
Conservation Easement
Wetlands Reserve Program (WRP), Union, OR
IUCN V
Reserve Program

7 more protected areassorted by area

4-O Ranch - Dec 2014
IUCN V
Environmental System
4-O Ranch - March 2014
IUCN V
Environmental System
4-O Ranch 2013
IUCN V
Environmental System
Grande Ronde River Segment A
IUCN V
Designated - Recreational
Grande Ronde River
IUCN V
Greenway
Grande Ronde, Oregon
IUCN V
Wild and Scenic River
4-O Ranch - Dec 2014
IUCN V
Environmental System

1 page = 1 named river (aggregation of 58 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

78 distinct species · 322 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 29 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Grande Ronde River : 20 espèces reliées par 49 interactions GloBI sur 3 types (connectance 12.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.121

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)