HydroBASINS lev08 watershed · #7080574640
Bassin de American 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 3 administrative regions : El Dorado, Placer, Sacramento
Sub-basin area
505,7km²
Upstream area
5 323km²
Discharge
97,71m³/s
Mean elev.
50m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- 496.4 km²98.1% of basin
- 5.1 km²1.0% of basin
- 4.6 km²0.9% of basin
13 intersecting protected areas
Folsom Lake State
IUCN VRecreation Area
0.50 km² overlap
Morrison Creek
IUCN Not AssignedConservation Easement
0.28 km² overlap
Hinkle Creek
IUCN VNature Area
0.18 km² overlap
Lake Natoma
IUCN VState Recreation Area
0.14 km² overlap
Schweitzer Grove
IUCN VNature Area
0.06 km² overlap
Arcade Creek
IUCN VNature Area
0.05 km² overlap
Sundance Park
IUCN VNatural Area
0.04 km² overlap
Preserve
0.04 km² overlap
Longview Oaks
IUCN VNature Preserve
0.03 km² overlap
4 more protected areassorted by overlap area
Phoenix Field
IUCN VEcological Reserve
0.03 km² overlap
Creekside
IUCN VNature Area
0.02 km² overlap
Holyoke
IUCN VNature Area
0.01 km² overlap
Montelena
IUCN Not AssignedPreserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 442 distinct species · 2 048 684 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 American River : 26 espèces reliées par 93 interactions GloBI sur 4 types (connectance 14.0%, 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°
16,2°C
Annual rain
504mm
Moisture idx (CMI)
-0,63
Runoff
239mm/an
PET
1 362mm
AET
425mm
Mean slope
0,8°
Water table
80cm
Forest
18%
Crops
2%
Urban
74%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)