Conservation Easement · usa
West Branch
- Area
- 1 154 km²
- IUCN cat.
- Not Assigned
- Year
- 2003
Overview
- Designation
- Conservation Easement
- Established
- 2003
- Managing authority
- Non-Governmental Organization
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
394 distinct species · 10 031 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 West Branch : 27 espèces reliées par 75 interactions GloBI sur 4 types (connectance 11.3%, 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).
Hydrology8 basins · 16 lakes · 43 rivers
Hydrology metrics for this exact territory
Stream length here
271,4km
Lake surface here
11,51km²
Basins crossed
8
Max stream order
4
Max drainage
2 219km²
Discharge in basins
27,0m³/s
Mean precip.
996mm/an
Mean T°
3,0°C
Moisture idx
0,25
Max snow
46%
Mean runoff
677mm/an
Mean elev. (basins)
459m
Watersheds crossing here
- Bassin de North Branch Penobscot Riversub-area652,2 km²overlap561.68 km²49%
- Bassin de Baker Branch Saint John Riversub-area893,7 km²overlap226.11 km²20%
- Bassin de South Branch Penobscot Riversub-area552,5 km²overlap174.24 km²15%
- Bassin de West Branch Penobscot Riversub-area1 013,8 km²overlap162.96 km²14%
- Bassin de Little Southwest Branch Saint John Riversub-area736,2 km²overlap24.69 km²2%
- Bassin de Rivière du Loupsub-area838,4 km²overlap2.62 km²0%
- Bassin de Tomhegan Streamsub-area503,1 km²overlap0.88 km²0%
- Bassin de Moose Riversub-area1 871,6 km²overlap0.69 km²0%
Lakes (16, top by area)
- Penobscot Lakearea4 km²avg depth2.9 m
- Long Pondarea2,4 km²avg depth9.4 m
- Dole Pondarea1,3 km²avg depth5.2 m
- Lac 1032398area0,7 km²avg depth5.0 m
- Lac 1033156area0,5 km²avg depth4.8 m
- Lac 1033513area0,4 km²avg depth6.2 m
- Lac 1032767area0,4 km²avg depth4.2 m
- Lac 1031258area0,3 km²avg depth2.8 m
- Lac 1031545area0,3 km²avg depth3.9 m
Rivers / streams (43, ord ≥ 4)
- North Branch Penobscot Riverord 4len here38.73 km70%total55 km
- Brailey Brookord 2len here21.29 km67%total32 km
- Penobscot Brookord 4len here16.91 km88%total19 km
- Elm Streamord 2len here16.01 km78%total20 km
- Dole Brookord 3len here13.87 km100%total14 km
- Hurricane Brookord 1len here11.73 km100%total12 km
- South Branch Penobscot Riverord 4len here11.31 km18%total64 km
- East Branch Norris Brookord 2len here10.01 km100%total10 km
- Middle Branch Norris Brookord 1len here8.74 km100%total9 km
- Rainey Brookord 2len here7.74 km100%total8 km
- Carry Brookord 2len here7.55 km23%total32 km
- Norris Brookord 3len here7.38 km100%total7 km
31 more river segmentssorted by Strahler order + length
- West Branch Rainey Brookord 1len here7.05 km100%total7 km
- Roberts Brookord 2len here6.82 km100%total7 km
- Foley Outletord 2len here6.76 km95%total7 km
- Lane Brookord 2len here6.75 km36%total19 km
- McDonald Brookord 1len here6.40 km100%total6 km
- Luther Brookord 1len here6.18 km88%total7 km
- South Branch Norris Brookord 1len here5.97 km100%total6 km
- West Branch Gulliver Brookord 1len here4.82 km100%total5 km
- Sweeney Brookord 4len here4.28 km12%total37 km
- Deadwater Brookord 2len here4.17 km90%total5 km
- Little Lane Brookord 4len here3.78 km53%total7 km
- Misere Brookord 1len here3.67 km100%total4 km
- Nulhedus Streamord 1len here3.60 km28%total13 km
- East Branch Gulliver Brookord 1len here3.26 km100%total3 km
- Spencer Brookord 1len here3.21 km68%total5 km
- Frost Pond Brookord 2len here3.15 km100%total3 km
- Little Russell Streamord 2len here2.76 km46%total6 km
- Stony Brookord 1len here2.74 km100%total3 km
- Logan Brookord 1len here2.33 km37%total6 km
- Fish Brookord 1len here2.29 km59%total4 km
- Budworm Brookord 1len here2.26 km100%total2 km
- Gulliver Brookord 3len here2.25 km12%total18 km
- Southwest Branch Saint John Riverord 4len here1.45 km2%total61 km
- Little Penobscot Brookord 1len here1.01 km26%total4 km
- West Branch Penobscot Riverord 6len here0.80 km0%total220 km
- Summit Brookord 1len here0.67 km58%total1 km
- Mullen Brookord 1len here0.55 km15%total4 km
- Rattling Brookord 1len here0.48 km101%total0 km
- Baker Branch Saint John Riverord 3len here0.37 km1%total74 km
- Alder Brookord 2len here0.18 km0%total53 km
- Baker Streamord 2len here0.13 km1%total9 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 46.06966, -70.14481
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.