HydroBASINS lev08 watershed · #7080661330
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 3 administrative regions : Clark, Mohave, San Bernardino
Sub-basin area
577,9km²
Upstream area
427 396,8km²
Discharge
507,09m³/s
Mean elev.
419m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Colorado River1122 km²
- Bassin de Colorado River113 km²
3 dept-equivalent regions (GADM L2)
- Clark233.1 km²40.3% of basin
- 179.1 km²31.0% of basin
- 165.6 km²28.7% of basin
8 intersecting protected areas
Dead Mountains
IUCN IbWilderness Area
133.41 km² overlap
Lake Mead
IUCN VNational Recreation Area
12.91 km² overlap
Bridge Canyon
IUCN IbWilderness Area
8.47 km² overlap
Mojave Trails
IUCN VNational Monument
6.34 km² overlap
Wilderness Land Trust
IUCN VPrivate Conservation
0.43 km² overlap
Private Conservation
0.02 km² overlap
Private Conservation
0.02 km² overlap
Dead Mountains
IUCN IbWilderness Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
931 distinct species · 28 822 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 Colorado River : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 4 types (connectance 12.4%, filtre Serrano α=0.2). 9 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
123mm
Moisture idx (CMI)
-0,92
Runoff
18mm/an
PET
1 604mm
AET
103mm
Mean slope
4,4°
Water table
657cm
Forest
0%
Crops
1%
Urban
8%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)