HydroBASINS lev08 watershed · #7080073650
Bassin de Sevier 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 : Millard
Sub-basin area
2 232,7km²
Upstream area
34 718,4km²
Discharge
66,7m³/s
Mean elev.
1 560m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Beaver River1202 km²
- Bassin de Sevier River15 km²
1 dept-equivalent regions (GADM L2)
- MillardUtah · United States2234.6 km²100.0% of basin
3 intersecting protected areas
Notch Peak
IUCN IbWilderness Study Area
142.55 km² overlap
Howell Peak
IUCN IbWilderness Study Area
39.01 km² overlap
Swasey Mountain
IUCN IbWilderness Study Area
16.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
692 distinct species · 5 711 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Sevier River : 28 espèces reliées par 120 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 20 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°
9,6°C
Annual rain
224mm
Moisture idx (CMI)
-0,82
Runoff
58mm/an
PET
1 287mm
AET
193mm
Mean slope
3,8°
Water table
423cm
Forest
4%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)