HydroBASINS lev08 watershed · #7080608130
Bassin de San Juan 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 : Kane, San Juan
Sub-basin area
298,9km²
Upstream area
64 725,4km²
Discharge
94,53m³/s
Mean elev.
1 440m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de San Juan River1843 km²
- Bassin de Piute Creek587 km²
2 dept-equivalent regions (GADM L2)
- San JuanUtah · United States298.6 km²99.9% of basin
- KaneUtah · United States0.4 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
309 distinct species · 657 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 San Juan River : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 5 types (connectance 8.3%, 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°
13,5°C
Annual rain
144mm
Moisture idx (CMI)
-0,89
Runoff
16mm/an
PET
1 325mm
AET
125mm
Mean slope
10,2°
Water table
989cm
Forest
5%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)