HydroBASINS lev08 watershed · #7080429210
Bassin de Henrys Fork Snake 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 5 administrative regions : Beaverhead, Fremont, Gallatin, Madison, Teton
Sub-basin area
780,2km²
Upstream area
780,5km²
Discharge
8,69m³/s
Mean elev.
2 211m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- FremontIdaho · United States739.6 km²94.6% of basin
- Teton33.3 km²4.3% of basin
- 6.1 km²0.8% of basin
- Gallatin2.4 km²0.3% of basin
- Madison0.5 km²0.1% of basin
11 intersecting protected areas
Yellowstone National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
54.33 km² overlap
Yellowstone
IUCN IINational Park
53.99 km² overlap
Recommended Wilderness
53.86 km² overlap
Yellowstone
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
53.25 km² overlap
Targhee Creek
IUCN IaResearch Natural Area
10.68 km² overlap
Henrys Lake ACEC
IUCN VLake
6.66 km² overlap
Flat Ranch
IUCN VPreserve
6.44 km² overlap
Reserve Program
2.40 km² overlap
Centennial Mountains
IUCN IbWilderness Study Area
2.26 km² overlap
2 more protected areassorted by overlap area
Henry's Lake
IUCN IbWilderness Study Area
1.41 km² overlap
F13
IUCN VConservation Easement
0.39 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 371 distinct species · 41 521 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Henrys Fork Snake River : 22 espèces reliées par 77 interactions GloBI sur 4 types (connectance 15.5%, filtre Serrano α=0.2). 10 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°
0,9°C
Annual rain
658mm
Moisture idx (CMI)
-0,19
Runoff
351mm/an
PET
818mm
AET
525mm
Mean slope
7,0°
Water table
255cm
Forest
92%
Crops
3%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)