HydroBASINS lev08 watershed · #7080567770
Bassin de West Fork Walker 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 5 administrative regions : Alpine, Douglas, Lyon, Mono, Tuolumne
Sub-basin area
2 257,6km²
Upstream area
2 257,6km²
Discharge
10,9m³/s
Mean elev.
2 119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 1053.7 km²46.6% of basin
- Lyon818.5 km²36.2% of basin
- Douglas377.0 km²16.7% of basin
- 7.4 km²0.3% of basin
- 2.5 km²0.1% of basin
18 intersecting protected areas
Hoover
IUCN IbWilderness
205.69 km² overlap
Wovoka
IUCN IbWilderness
47.70 km² overlap
Wildlife Area
46.58 km² overlap
Slinkard
IUCN IbWilderness Study Area
16.73 km² overlap
Walker River/Walker
IUCN VLake
16.12 km² overlap
Burbank Canyons
IUCN IbWilderness Study Area
13.13 km² overlap
Rainbow Meadow
IUCN IaResearch Natural Area
5.92 km² overlap
Burcham & Wheeler Flats
IUCN VWildlife Area
4.80 km² overlap
Pickel Meadow
IUCN VWildlife Area
3.83 km² overlap
9 more protected areassorted by overlap area
Carson-Iceberg
IUCN IbWilderness
2.96 km² overlap
West Walker River
IUCN VWildlife Area
2.90 km² overlap
Emigrant
IUCN IbWilderness
1.38 km² overlap
Yosemite
IUCN IbWilderness Area
1.22 km² overlap
Yosemite National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1.20 km² overlap
Yosemite
IUCN IINational Park
0.86 km² overlap
Topaz Lake
IUCN VPublic Fishing Area
0.82 km² overlap
Two Rivers
IUCN VPreserve
0.59 km² overlap
Willow Flat
IUCN Not AssignedConservation Easement
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 938 distinct species · 79 122 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 West Fork Walker River : 26 espèces reliées par 103 interactions GloBI sur 5 types (connectance 14.7%, 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°
6,3°C
Annual rain
432mm
Moisture idx (CMI)
-0,54
Runoff
203mm/an
PET
1 058mm
AET
338mm
Mean slope
10,4°
Water table
517cm
Forest
57%
Crops
7%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)