HydroBASINS lev08 watershed · #7080386260
Bassin de Gallatin 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 4 administrative regions : Gallatin, Madison, Park
Sub-basin area
4 797,6km²
Upstream area
4 797,7km²
Discharge
33,04m³/s
Mean elev.
1 999m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Gallatin4136.4 km²86.0% of basin
- Madison374.7 km²7.8% of basin
- Park162.2 km²3.4% of basin
- 135.6 km²2.8% of basin
16 intersecting protected areas
Lee Metcalf
IUCN IbWilderness
452.24 km² overlap
Yellowstone
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
351.53 km² overlap
Yellowstone
IUCN IINational Park
348.11 km² overlap
Yellowstone National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
348.09 km² overlap
Recommended Wilderness
335.51 km² overlap
Wilderness Study Area
311.17 km² overlap
Spanish Peaks Macrosite
IUCN VEasement
164.80 km² overlap
Palace Butte
IUCN IaResearch Natural Area
5.40 km² overlap
Wheeler Ridge
IUCN IaResearch Natural Area
2.59 km² overlap
7 more protected areassorted by overlap area
Black Butte
IUCN IaResearch Natural Area
2.11 km² overlap
Gallatin River Cor
IUCN VRiver Corridor
1.42 km² overlap
Reserve Program
1.17 km² overlap
Reservoir
0.95 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Gallatin, MT
IUCN VConservation Easement
0.73 km² overlap
Easement
0.48 km² overlap
Reserve Program
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 088 distinct species · 925 581 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 Gallatin River : 16 espèces reliées par 74 interactions GloBI sur 4 types (connectance 21.1%, filtre Serrano α=0.2). 11 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°
2,7°C
Annual rain
591mm
Moisture idx (CMI)
-0,26
Runoff
221mm/an
PET
835mm
AET
479mm
Mean slope
10,9°
Water table
447cm
Forest
64%
Crops
18%
Urban
1%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)