HydroBASINS lev08 watershed · #7080592080
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, San Juan, Wayne
Sub-basin area
1 892,6km²
Upstream area
185 432,6km²
Discharge
452,87m³/s
Mean elev.
1 915m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Green River2725 km²
- Bassin de Salt Creek426 km²
3 dept-equivalent regions (GADM L2)
- San JuanUtah · United States1467.3 km²77.5% of basin
- GarfieldUtah · United States392.0 km²20.7% of basin
- WayneUtah · United States34.4 km²1.8% of basin
9 intersecting protected areas
No recommendation
274.65 km² overlap
Canyonlands
IUCN IINational Park
246.09 km² overlap
Dark Canyon
IUCN IbWilderness
187.61 km² overlap
Butler Wash
IUCN IbWilderness Study Area
64.52 km² overlap
Fiddler Butte
IUCN IbWilderness Study Area
61.67 km² overlap
Inholding
IUCN IbWilderness Study Area
10.91 km² overlap
Bears Ears
IUCN VNational Monument
0.64 km² overlap
National Monument
0.64 km² overlap
Cheese Box Canyon
IUCN IbWilderness Study Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 037 distinct species · 6 408 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 57 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 100 interactions GloBI sur 5 types (connectance 6.3%, filtre Serrano α=0.2). 16 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°
9,8°C
Annual rain
288mm
Moisture idx (CMI)
-0,75
Runoff
17mm/an
PET
1 185mm
AET
248mm
Mean slope
11,5°
Water table
1 122cm
Forest
23%
Crops
2%
Urban
0%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)