HydroBASINS lev08 watershed · #7080610430
Bassin de Virgin 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 1 administrative regions : Washington
Sub-basin area
30,5km²
Upstream area
8 634,7km²
Discharge
16,94m³/s
Mean elev.
899m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Virgin River659 km²
- Bassin de Fort Pierce Wash65 km²
1 dept-equivalent regions (GADM L2)
- WashingtonUtah · United States30.5 km²100.0% of basin
2 intersecting protected areas
Red Cliffs
IUCN VNational Monument
12.42 km² overlap
State Wildlife Reserve/Management Area
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 807 distinct species · 59 643 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 Virgin River : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 4 types (connectance 13.0%, 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°
16,2°C
Annual rain
225mm
Moisture idx (CMI)
-0,85
Runoff
64mm/an
PET
1 528mm
AET
190mm
Mean slope
4,4°
Water table
568cm
Forest
2%
Crops
7%
Urban
46%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)