HydroBASINS lev08 watershed · #7080482350
Bassin de St Charles Creek
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 5 administrative regions : Bear Lake, Cache, Caribou, Franklin, Rich
Sub-basin area
1 788,2km²
Upstream area
1 788,4km²
Discharge
5,56m³/s
Mean elev.
2 054m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Bear LakeIdaho · United States1100.2 km²61.4% of basin
- RichUtah · United States679.9 km²38.0% of basin
- FranklinIdaho · United States6.9 km²0.4% of basin
- CacheUtah · United States4.0 km²0.2% of basin
- CaribouIdaho · United States0.0 km²0.0% of basin
7 intersecting protected areas
Bear Lake
IUCN IVNational Wildlife Refuge
73.58 km² overlap
Reserve Program
3.34 km² overlap
Swan Creek
IUCN VState Wildlife Area
2.83 km² overlap
St. Charles Creek
IUCN IaResearch Natural Area
1.73 km² overlap
Dingle Swamp
IUCN VWildlife Habitat Area
0.81 km² overlap
Worm Creek
IUCN IbWilderness Study Area
0.16 km² overlap
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 128 distinct species · 61 744 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 St Charles Creek : 19 espèces reliées par 79 interactions GloBI sur 4 types (connectance 17.0%, filtre Serrano α=0.2). 12 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°
3,7°C
Annual rain
389mm
Moisture idx (CMI)
-0,58
Runoff
91mm/an
PET
942mm
AET
337mm
Mean slope
6,9°
Water table
518cm
Forest
54%
Crops
17%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)