National Monument · usa
San Gabriel Mountains
- Area
- 1 397 km²
- IUCN cat.
- V
- Year
- 2014
Overview
- Designation
- National Monument
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 2014
- Managing authority
- County Land ; City Land ; Forest Service
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
5 479 distinct species · 540 321 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 San Gabriel Mountains : 28 espèces reliées par 89 interactions GloBI sur 4 types (connectance 10.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology8 basins · 3 lakes · 25 rivers
Hydrology metrics for this exact territory
Stream length here
201,0km
Lake surface here
1,34km²
Basins crossed
8
Max stream order
4
Max drainage
3 264km²
Discharge in basins
6,9m³/s
Mean precip.
449mm/an
Mean T°
15,5°C
Moisture idx
-0,66
Max snow
4%
Mean runoff
150mm/an
Mean elev. (basins)
725m
Watersheds crossing here
- Bassin de San Gabriel Riversub-area2 103,6 km²overlap689.56 km²49%
- Bassin de Little Rock Washsub-area917,6 km²overlap277.45 km²20%
- Bassin de Santa Clara Riversub-area1 752,6 km²overlap200.30 km²14%
- Bassin de Los Angeles Riversub-area2 031,9 km²overlap142.04 km²10%
- Bassin de California Aqueduct East Branchsub-area828 km²overlap43.62 km²3%
- Bassin de Santa Ana Riversub-area3 264,2 km²overlap33.05 km²2%
- Bassin de Amargosa Creeksub-area818,7 km²overlap7.58 km²1%
- Bassin de Sheep Creeksub-area457,2 km²overlap3.47 km²0%
Lakes (3, top by area)
Rivers / streams (25, ord ≥ 4)
- West Fork San Gabriel Riverord 3len here24.06 km100%total24 km
- East Fork San Gabriel Riverord 3len here20.77 km100%total21 km
- Little Rock Creekord 2len here18.06 km100%total18 km
- Bear Creekord 2len here17.65 km100%total18 km
- North Fork San Gabriel Riverord 2len here10.32 km100%total10 km
- Vincent Gulchord 2len here9.99 km100%total10 km
- San Gabriel Riverord 4len here9.97 km15%total67 km
- Devils Canyonord 1len here9.86 km100%total10 km
- Iron Forkord 2len here9.78 km100%total10 km
- Mill Creekord 2len here8.18 km45%total18 km
- Santa Clara Riverord 5len here7.52 km5%total152 km
- Big Tujunga Riverord 3len here7.41 km29%total25 km
13 more river segmentssorted by Strahler order + length
- Big Rock Creekord 2len here6.99 km36%total20 km
- San Dimas Channelord 1len here6.73 km26%total26 km
- South Fork Little Rock Creekord 1len here5.29 km100%total5 km
- Fish Forkord 1len here5.28 km100%total5 km
- South Fork Big Rock Creekord 1len here4.41 km100%total4 km
- Roberts Canyonord 1len here3.29 km86%total4 km
- Little Rock Washord 2len here3.04 km6%total54 km
- Mescal Creekord 1len here3.02 km10%total29 km
- Middle Fork Alder Creekord 1len here3.00 km100%total3 km
- Fern Canyonord 1len here2.74 km63%total4 km
- Big Dalton Washord 1len here2.09 km16%total13 km
- Alder Creekord 1len here0.96 km100%total1 km
- California Aqueduct East Branchord 2len here0.59 km1%total54 km
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
- 34.32116, -117.87360
- 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.