Rivière· 55 segments

Henrys Fork Snake River

Crosses 2 administrative regions : Fremont, Madison

rivière

Total length

202km

Max discharge

85,1m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-70804395401704 km²

2 administrative regions crossed (GADM L2)

Fremont
Idaho · United States
241.8 km
in this dpt
Madison
Idaho · United States
13.8 km
in this dpt

15 intersecting protected areas

Sand Creek
IUCN V
Wildlife Management Area
Upper Snake / South Fork Snake River ACEC / SRMA
IUCN V
Conservation Easement
Henrys Lake ACEC
IUCN V
Lake
Upper Snake/South Fork Snake River ACEC SRMA 15
IUCN Not Assigned
Conservation Easement
M06
IUCN Not Assigned
Conservation Easement
Flat Ranch
IUCN V
Preserve
Grassland Reserve Program (GRP), Fremont, ID
IUCN V
Reserve Program
Wetlands Reserve Program (WRP), Madison, ID
IUCN V
Reserve Program
Wetlands Reserve Program (WRP), Fremont, ID
IUCN V
Reserve Program

6 more protected areassorted by area

F18
IUCN V
Conservation Easement
F04
IUCN V
Conservation Easement
F02
IUCN V
Conservation Easement
F03
IUCN V
Conservation Easement
F19
IUCN V
Conservation Easement
F11
IUCN V
Conservation Easement

1 page = 1 named river (aggregation of 55 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

125 distinct species · 212 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Henrys Fork Snake River : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 6 types (connectance 12.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.121

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)