HydroBASINS lev08 watershed · #7080402790
Bassin de Saint Croix 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 3 administrative regions across 2 countries : Charlotte, Washington, York
Sub-basin area
243km²
Upstream area
1 273,1km²
Discharge
25,97m³/s
Mean elev.
123m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Saint Croix River645 km²
- Bassin de Palfrey Stream385 km²
3 dept-equivalent regions (GADM L2)
- Washington122.5 km²50.3% of basin
- 69.8 km²28.7% of basin
- 51.2 km²21.0% of basin
9 intersecting protected areas
4043500
IUCN IINature Legacy protected area
21.28 km² overlap
4043400
IUCN IINature Legacy protected area
8.66 km² overlap
4004500
IUCN IINature Legacy protected area
7.13 km² overlap
Canoose Flowage
IUCN IIProtected Natural Area
2.36 km² overlap
Spednic Lake
IUCN IIProtected Natural Area
1.71 km² overlap
4043200
IUCN IINature Legacy protected area
1.24 km² overlap
4004400
IUCN IINature Legacy protected area
0.63 km² overlap
4006200
IUCN IINature Legacy protected area
0.51 km² overlap
St. Croix River Islands
IUCN IaProtected Natural Area
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
686 distinct species · 3 238 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Saint Croix River : 36 espèces reliées par 97 interactions GloBI sur 4 types (connectance 9.8%, filtre Serrano α=0.2). 9 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°
5,3°C
Annual rain
1 090mm
Moisture idx (CMI)
0,25
Runoff
680mm/an
PET
822mm
AET
663mm
Mean slope
1,7°
Water table
83cm
Forest
98%
Crops
1%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)