HydroBASINS lev08 watershed · #7080432170
Bassin de West Branch Oswegatchie 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 : Herkimer, Lewis, Saint Lawrence
Sub-basin area
751,4km²
Upstream area
751,4km²
Discharge
18,03m³/s
Mean elev.
388m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- LewisNew York · United States299.9 km²39.8% of basin
- Saint LawrenceNew York · United States288.6 km²38.3% of basin
- HerkimerNew York · United States164.4 km²21.8% of basin
14 intersecting protected areas
Five Ponds
IUCN IbWilderness
97.15 km² overlap
Aldrich Pond
IUCN VWild Forest
65.55 km² overlap
Watson East Triangle
IUCN VWild Forest
54.40 km² overlap
Pepperbox
IUCN IbWilderness
27.87 km² overlap
Frank E. Jadwin Memorial
IUCN IbState Forest
17.37 km² overlap
New York
IUCN VState Lands
1.95 km² overlap
Diana Detached Parcel
IUCN VState Forest Preserve
1.87 km² overlap
Local Conservation Area
1.23 km² overlap
Reserve Program
0.50 km² overlap
5 more protected areassorted by overlap area
Sucker Lake Water
IUCN VAccess
0.37 km² overlap
Bear Pond Primitive
IUCN IbCorridor
0.07 km² overlap
Tied Lake Primitive
IUCN VCorridor
0.02 km² overlap
Tied Lake Primitive
IUCN IbCorridor
0.01 km² overlap
Watsons East Triangle
IUCN VIState Resource Management Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
987 distinct species · 10 252 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 West Branch Oswegatchie River : 29 espèces reliées par 72 interactions GloBI sur 3 types (connectance 9.7%, 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°
5,3°C
Annual rain
1 094mm
Moisture idx (CMI)
0,22
Runoff
755mm/an
PET
853mm
AET
704mm
Mean slope
2,9°
Water table
165cm
Forest
99%
Crops
1%
Urban
0%
Protected
32%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)