HydroBASINS lev08 watershed · #7080495600
Bassin de Logan 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 6 administrative regions : Bear Lake, Box Elder, Cache, Franklin, Rich +1
Sub-basin area
2 266,4km²
Upstream area
2 266,4km²
Discharge
9,75m³/s
Mean elev.
2 050m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- CacheUtah · United States2176.5 km²95.9% of basin
- FranklinIdaho · United States71.7 km²3.2% of basin
- RichUtah · United States8.1 km²0.4% of basin
- Box ElderUtah · United States7.7 km²0.3% of basin
- WeberUtah · United States4.9 km²0.2% of basin
- Bear LakeIdaho · United States0.7 km²0.0% of basin
19 intersecting protected areas
Hardware Ranch
IUCN VState Wildlife Area
52.13 km² overlap
Wellsville Mountain
IUCN IbWilderness
44.02 km² overlap
Mount Naomi
IUCN IbWilderness
23.54 km² overlap
Selman Ranch Conservation Project
IUCN Not AssignedConservation Easement
21.74 km² overlap
Millville Face
IUCN VState Wildlife Area
12.94 km² overlap
Mollens Hollow
IUCN IaResearch Natural Area
4.41 km² overlap
State Wildlife Reserve/Management Area
2.55 km² overlap
Bud Phelps
IUCN VState Wildlife Area
1.36 km² overlap
State Wildlife Reserve/Management Area
1.30 km² overlap
10 more protected areassorted by overlap area
State Wildlife Reserve/Management Area
1.25 km² overlap
East Fork Little Bear
IUCN VState Wildlife Area
0.98 km² overlap
State Wildlife Reserve/Management Area
0.65 km² overlap
State Wildlife Reserve/Management Area
0.30 km² overlap
State Wildlife Reserve/Management Area
0.16 km² overlap
State Wildlife Reserve/Management Area
0.08 km² overlap
State Wildlife Reserve/Management Area
0.07 km² overlap
Millville Face
IUCN VState Wildlife Reserve/Management Area
0.07 km² overlap
Nibley--Alice Denny
IUCN Not AssignedConservation Easement
0.05 km² overlap
State Wildlife Reserve/Management Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 915 distinct species · 474 225 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Logan River : 19 espèces reliées par 60 interactions GloBI sur 3 types (connectance 17.1%, filtre Serrano α=0.2). 8 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°
4,3°C
Annual rain
510mm
Moisture idx (CMI)
-0,45
Runoff
130mm/an
PET
951mm
AET
435mm
Mean slope
12,2°
Water table
606cm
Forest
78%
Crops
13%
Urban
2%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)