HydroBASINS lev08 watershed · #7080675400
Bassin de Colorado 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 2 administrative regions : Mohave, San Bernardino
Sub-basin area
2 630,3km²
Upstream area
437 324,9km²
Discharge
508,31m³/s
Mean elev.
443m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Colorado River1248 km²
- Bassin de Sacramento Wash542 km²
2 dept-equivalent regions (GADM L2)
- 1957.8 km²74.4% of basin
- 672.0 km²25.6% of basin
8 intersecting protected areas
Chemehuevi Mountains
IUCN IbWilderness Area
283.19 km² overlap
Mojave Trails
IUCN VNational Monument
252.08 km² overlap
Stepladder Mountains
IUCN IbWilderness Area
216.78 km² overlap
Whipple Mountains
IUCN IbWilderness Area
184.07 km² overlap
Turtle Mountains
IUCN IbWilderness Area
101.68 km² overlap
Havasu
IUCN IVNational Wildlife Refuge
94.85 km² overlap
Havasu
IUCN IbWilderness Area
71.05 km² overlap
Private Conservation
0.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 370 distinct species · 213 767 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 Colorado River : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 8 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°
21,4°C
Annual rain
146mm
Moisture idx (CMI)
-0,91
Runoff
13mm/an
PET
1 630mm
AET
122mm
Mean slope
4,5°
Water table
851cm
Forest
0%
Crops
0%
Urban
3%
Protected
60%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)