HydroBASINS lev08 watershed · #7080605110
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 : Garfield, Kane, San Juan
Sub-basin area
1 103,8km²
Upstream area
202 183,8km²
Discharge
461,56m³/s
Mean elev.
1 463m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Colorado River2346 km²
- Bassin de Bullfrog Creek797 km²
3 dept-equivalent regions (GADM L2)
- San JuanUtah · United States418.1 km²37.9% of basin
- GarfieldUtah · United States395.7 km²35.8% of basin
- KaneUtah · United States290.5 km²26.3% of basin
2 intersecting protected areas
Capitol Reef
IUCN IINational Park
224.90 km² overlap
Mt. Pennell
IUCN IbWilderness Study Area
48.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
641 distinct species · 3 543 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 61 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 : 41 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 119 interactions GloBI sur 4 types (connectance 6.3%, filtre Serrano α=0.2). 21 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°
12,9°C
Annual rain
158mm
Moisture idx (CMI)
-0,88
Runoff
18mm/an
PET
1 323mm
AET
137mm
Mean slope
7,8°
Water table
1 053cm
Forest
1%
Crops
0%
Urban
0%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)