HydroBASINS lev08 watershed · #7080321920
Bassin de Flathead 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 1 administrative regions : Flathead
Sub-basin area
137km²
Upstream area
7 127,4km²
Discharge
125,36m³/s
Mean elev.
1 156m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- 137.4 km²100.0% of basin
11 intersecting protected areas
Coram
IUCN VExperimental Forest
31.44 km² overlap
Waterton Glacier International Peace
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
16.67 km² overlap
Flathead, Montana
IUCN VWild and Scenic River
9.53 km² overlap
Coram
IUCN IaResearch Natural Area
3.42 km² overlap
Great Bear
IUCN IbWilderness
0.28 km² overlap
Easement
0.26 km² overlap
Tract 5800
IUCN Not AssignedSCENIC EASEMENT
0.16 km² overlap
Tract 5640
IUCN Not AssignedSCENIC EASEMENT
0.12 km² overlap
Tract 6140 & Tract 6150
IUCN Not AssignedSCENIC EASEMENT
0.09 km² overlap
2 more protected areassorted by overlap area
Tract 5691
IUCN Not AssignedSCENIC EASEMENT
0.05 km² overlap
Tract 5800.1
IUCN Not AssignedSCENIC EASEMENT
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
849 distinct species · 11 445 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Flathead River : 25 espèces reliées par 103 interactions GloBI sur 5 types (connectance 12.6%, filtre Serrano α=0.2). 16 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°
4,9°C
Annual rain
710mm
Moisture idx (CMI)
-0,17
Runoff
568mm/an
PET
860mm
AET
564mm
Mean slope
9,8°
Water table
362cm
Forest
87%
Crops
0%
Urban
0%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)