HydroBASINS lev08 watershed · #7080305860
Bassin de Couldrey Creek
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 3 administrative regions across 2 countries : East Kootenay, Flathead, Lincoln
Sub-basin area
204km²
Upstream area
1 127,2km²
Discharge
19,45m³/s
Mean elev.
1 628m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- 156.5 km²76.5% of basin
- 47.9 km²23.4% of basin
- Lincoln0.2 km²0.1% of basin
9 intersecting protected areas
Flathead Watershed Area
IUCN Not ApplicableFlathead Watershed Area
37.63 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
3.16 km² overlap
Flathead, Montana
IUCN VWild and Scenic River
1.09 km² overlap
Glacier Proposed or Recom
IUCN IbRecommended Wilderness
0.85 km² overlap
Waterton Glacier International Peace Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
0.85 km² overlap
Privately Protected Area
0.84 km² overlap
Flathead River Ranch
IUCN IVPrivately Owned Conservation Area
0.84 km² overlap
Glacier
IUCN IINational Park
0.79 km² overlap
Johnston
IUCN VConservation Easement
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
463 distinct species · 2 208 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Couldrey Creek : 31 espèces reliées par 99 interactions GloBI sur 4 types (connectance 9.2%, 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°
1,9°C
Annual rain
719mm
Moisture idx (CMI)
-0,04
Runoff
436mm/an
PET
754mm
AET
538mm
Mean slope
13,3°
Water table
464cm
Forest
87%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)