Wilderness · usa
Hells Canyon
- Area
- 883 km²
- IUCN cat.
- Ib
- Year
- 1975
Overview
- Designation
- Wilderness
- IUCN category
- Ib · Zone de nature sauvage
Aire protégée pour la wilderness, faible accès humain
- Established
- 1975
- Managing authority
- Forest Service ; Bureau of Land Management
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
888 distinct species · 3 748 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Hells Canyon : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 6 types (connectance 10.1%, 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).
Hydrology6 basins · 0 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
111,9km
Basins crossed
6
Max stream order
7
Max drainage
171 666km²
Discharge in basins
435,3m³/s
Mean precip.
576mm/an
Mean T°
6,0°C
Moisture idx
-0,38
Max snow
40%
Mean runoff
378mm/an
Mean elev. (basins)
1 265m
Watersheds crossing here
- Bassin de Snake Riversub-area1 600,7 km²overlap833.03 km²94%
- Bassin de Little Salmon Riversub-area1 486,3 km²overlap44.79 km²5%
- Bassin de Big Sheep Creeksub-area2 194,5 km²overlap4.40 km²0%
- Bassin de Snake Riversub-area198,6 km²overlap0.16 km²0%
- Bassin de Salmon Riversub-area369,3 km²overlap0.15 km²0%
- Bassin de Wildhorse Riversub-area456,8 km²overlap0.00 km²0%
Rivers / streams (18, ord ≥ 4)
- Snake Riverord 7len here29.98 km1%total2867 km
- Deep Creekord 7len here16.93 km3%total550 km
- Granite Creekord 3len here11.05 km4%total274 km
- Little Granite Creekord 2len here8.21 km55%total15 km
- Sheep Creekord 5len here5.97 km2%total260 km
- Clarks Forkord 2len here5.96 km100%total6 km
- West Fork Sheep Creekord 1len here5.89 km100%total6 km
- Grimes Creekord 3len here4.74 km7%total65 km
- Somers Creekord 7len here4.48 km68%total7 km
- Fall Creekord 4len here3.38 km2%total162 km
- Salt Creekord 4len here3.20 km3%total110 km
- Temperence Creekord 2len here2.94 km75%total4 km
6 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 45.32577, -116.58282
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.