HydroBASINS lev08 watershed · #7080663640
Bassin de Little Rock Wash
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 : Kern, Los Angeles
Sub-basin area
917,6km²
Upstream area
917,7km²
Discharge
1,49m³/s
Mean elev.
1 113m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 909.5 km²99.1% of basin
- 7.9 km²0.9% of basin
11 intersecting protected areas
San Gabriel Mountains
IUCN VNational Monument
277.45 km² overlap
Pleasant View Ridge
IUCN IbWilderness
106.83 km² overlap
Devil's Punchbowl
IUCN VNatural Area
5.00 km² overlap
Alpine Butte
IUCN VWildlife Sanctuary
1.31 km² overlap
Big Rock Wash
IUCN VWildlife Sanctuary
0.65 km² overlap
Blalock
IUCN VWildlife Sanctuary
0.57 km² overlap
Longview
IUCN VWildlife Sanctuary
0.56 km² overlap
Jackrabbit Flats
IUCN VWildlife Sanctuary
0.46 km² overlap
Sheep Mountain
IUCN IbWilderness
0.20 km² overlap
2 more protected areassorted by overlap area
Blanche Hamilton
IUCN VWildlife Sanctuary
0.16 km² overlap
San Gabriel
IUCN IbWilderness
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 793 distinct species · 333 851 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Little Rock Wash : 25 espèces reliées par 79 interactions GloBI sur 4 types (connectance 12.5%, filtre Serrano α=0.2). 11 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°
14,1°C
Annual rain
370mm
Moisture idx (CMI)
-0,71
Runoff
134mm/an
PET
1 383mm
AET
298mm
Mean slope
6,8°
Water table
354cm
Forest
19%
Crops
3%
Urban
3%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)