HydroBASINS lev08 watershed · #7080458480
Bassin de Contoocook 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 : Cheshire, Hillsborough, Merrimack, Sullivan
Sub-basin area
1 982km²
Upstream area
1 982,3km²
Discharge
38,19m³/s
Mean elev.
310m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1036.6 km²52.2% of basin
- Hillsborough572.4 km²28.8% of basin
- 278.2 km²14.0% of basin
- Sullivan98.5 km²5.0% of basin
30 intersecting protected areas
Peirce Wildlife + Forest
IUCN VReservation
13.96 km² overlap
Otter Brook
IUCN VConservation Easement
7.10 km² overlap
Pond
4.40 km² overlap
Otter Brook Farm
IUCN Not AssignedConservation Easement
3.80 km² overlap
Robert P. Bass Memorial
IUCN VITown Forest
3.58 km² overlap
Sidney Williams Woods
IUCN VPrivate Conservation
3.47 km² overlap
Monadnock
IUCN VReservation
3.17 km² overlap
Pioneer
IUCN VLake
2.87 km² overlap
Private Conservation Land
2.46 km² overlap
21 more protected areassorted by overlap area
Loverens Mill
IUCN VPrivate Conservation Land
2.40 km² overlap
Wapack
IUCN IVNational Wildlife Refuge
2.30 km² overlap
Gridley River -- Perry
IUCN VReservation
2.14 km² overlap
Reserve Program
1.50 km² overlap
Louis Cabot
IUCN VPreserve
1.45 km² overlap
Borden
IUCN VEasement
1.18 km² overlap
Campbell
IUCN Not AssignedPond
1.00 km² overlap
Stonewall Farm III
IUCN Not AssignedConservation Easement
0.84 km² overlap
Ries
IUCN Not AssignedConservation Easement
0.82 km² overlap
Thomas 2
IUCN Not AssignedConservation Easement
0.72 km² overlap
Rathburn Tract
IUCN VPrivate Conservation
0.70 km² overlap
Darwin's View
IUCN Not AssignedConservation Easement
0.70 km² overlap
Camp Wildwood
IUCN VPrivate Conservation
0.70 km² overlap
John Kennedy Marshall Memorial
IUCN Not AssignedConservation Easement
0.68 km² overlap
Stonewall Farm II
IUCN Not AssignedConservation Easement
0.65 km² overlap
Dugdale Tree Farm
IUCN Not AssignedConservation Easement
0.59 km² overlap
Thomas 3
IUCN Not AssignedConservation Easement
0.58 km² overlap
Babine-Wheeler-Lowe
IUCN Not AssignedConservation Easement
0.57 km² overlap
Schoodac Brook
IUCN VState Conservation Area
0.55 km² overlap
Contoocook Village Water District
IUCN Not AssignedWater District
0.55 km² overlap
Gilbert
IUCN VConservation Easement
0.54 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 752 distinct species · 592 417 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 Contoocook River : 29 espèces reliées par 106 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 12 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°
6,7°C
Annual rain
1 104mm
Moisture idx (CMI)
0,16
Runoff
626mm/an
PET
925mm
AET
738mm
Mean slope
5,3°
Water table
349cm
Forest
99%
Crops
2%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)