HydroBASINS lev08 watershed · #7080414710
Bassin de Great Chazy 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 4 administrative regions across 2 countries : Clinton, Grand Isle, Le Haut-Richelieu, Les Jardins-de-Napierville
Sub-basin area
1 049km²
Upstream area
1 049km²
Discharge
17,91m³/s
Mean elev.
244m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- ClintonNew York · United States1013.8 km²96.4% of basin
- 25.1 km²2.4% of basin
- 12.3 km²1.2% of basin
- 0.1 km²0.0% of basin
18 intersecting protected areas
Chazy Highlands
IUCN IbWild Forest
43.86 km² overlap
Chazy Highlands
IUCN IbState Forest
19.93 km² overlap
Lake Alice
IUCN VWildlife Management Area
6.03 km² overlap
Lewis Preserve
IUCN VWildlife Management Area
5.39 km² overlap
Preserve
2.19 km² overlap
State
IUCN VForest Preserve
2.12 km² overlap
Reserve Program
1.69 km² overlap
Town of Moores
IUCN VIState Resource Management Area
1.30 km² overlap
Monty's Bay
IUCN VWildlife Management Area
1.29 km² overlap
9 more protected areassorted by overlap area
Conservation Easement
1.21 km² overlap
Kings Bay
IUCN VWildlife Management Area
1.12 km² overlap
Gadway Road Flatrock
IUCN VPrivate Conservation Land
0.63 km² overlap
Spring Brook
IUCN IbState Forest
0.38 km² overlap
Altona Flat Rock
IUCN VPrivate Conservation Land
0.24 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Clinton, NY
IUCN VConservation Easement
0.18 km² overlap
Reserve Program
0.18 km² overlap
CBSA St-Bernard-de-Lacolle Crossing Conservation Area
IUCN Not ApplicableCBSA Conservation Area
0.10 km² overlap
New York
IUCN VState Lands
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 612 distinct species · 51 113 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Great Chazy River : 26 espèces reliées par 70 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 11 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°
5,8°C
Annual rain
879mm
Moisture idx (CMI)
0,04
Runoff
551mm/an
PET
841mm
AET
651mm
Mean slope
1,9°
Water table
128cm
Forest
89%
Crops
16%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)