HydroBASINS lev08 watershed · #7080396520
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 : Aroostook, Washington, York
Sub-basin area
644,8km²
Upstream area
644,8km²
Discharge
13,42m³/s
Mean elev.
156m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 343.0 km²53.1% of basin
- 160.6 km²24.9% of basin
- Washington142.7 km²22.1% of basin
16 intersecting protected areas
Spednic Lake
IUCN IIProtected Natural Area
155.19 km² overlap
4008800
IUCN IINature Legacy protected area
21.39 km² overlap
4007400
IUCN IINature Legacy protected area
4.05 km² overlap
4008500
IUCN IINature Legacy protected area
4.02 km² overlap
4003500
IUCN IINature Legacy protected area
1.96 km² overlap
4046900
IUCN IINature Legacy protected area
1.12 km² overlap
4003900
IUCN IINature Legacy protected area
0.98 km² overlap
4009500
IUCN IINature Legacy protected area
0.92 km² overlap
Monument Brook
IUCN IIProtected Natural Area
0.58 km² overlap
7 more protected areassorted by overlap area
North Lake
IUCN IbProtected Natural Area
0.58 km² overlap
4004400
IUCN IINature Legacy protected area
0.57 km² overlap
Hay Brook
IUCN IIProtected Natural Area
0.34 km² overlap
4006600
IUCN IINature Legacy protected area
0.27 km² overlap
4000500
IUCN IINature Legacy protected area
0.09 km² overlap
Greenland Island
IUCN VPCL
0.03 km² overlap
4004300
IUCN IINature Legacy protected area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
657 distinct species · 4 700 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 29 espèces reliées par 91 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 10 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°
4,8°C
Annual rain
1 062mm
Moisture idx (CMI)
0,22
Runoff
688mm/an
PET
831mm
AET
663mm
Mean slope
2,4°
Water table
118cm
Forest
69%
Crops
2%
Urban
0%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)