HydroBASINS lev08 watershed · #7080290340
Bassin de St. Mary 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 2 administrative regions : Central Kootenay, East Kootenay
Sub-basin area
2 696,8km²
Upstream area
2 696,8km²
Discharge
41,44m³/s
Mean elev.
1 702m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 2692.7 km²99.5% of basin
- 13.1 km²0.5% of basin
17 intersecting protected areas
A - Park
134.91 km² overlap
ST. MARY'S ALPINE PARK
IUCN IbA - Park
92.80 km² overlap
Privately Owned Conservation Area
2.07 km² overlap
Pine Butte Ranch
IUCN IVPrivately Owned Conservation Area
1.93 km² overlap
Privately Protected Area
1.74 km² overlap
Privately Protected Area
1.60 km² overlap
Luke Creek Wildlife Corridor
IUCN IVPrivately Owned Conservation Area
1.60 km² overlap
Privately Owned Conservation Area
1.53 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
1.38 km² overlap
8 more protected areassorted by overlap area
KIANUKO PARK
IUCN IIA - Park
1.01 km² overlap
Privately Protected Area
0.65 km² overlap
Luke Creek Wildlife Corridor
IUCN IVPrivately Owned Conservation Area
0.65 km² overlap
Pine Butte South
IUCN IVPrivately Owned Conservation Area
0.64 km² overlap
Privately Protected Area
0.64 km² overlap
LOCKHART CREEK PARK
IUCN IIA - Park
0.19 km² overlap
JIMSMITH LAKE PARK
IUCN Not ReportedA - Park
0.14 km² overlap
Elizabeth Lake
IUCN IVPrivately Owned Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 163 distinct species · 340 416 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 St. Mary River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 18.2%, filtre Serrano α=0.2). 8 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°
1,3°C
Annual rain
735mm
Moisture idx (CMI)
0,09
Runoff
462mm/an
PET
664mm
AET
485mm
Mean slope
20,0°
Water table
660cm
Forest
74%
Crops
1%
Urban
1%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)