Wilderness Study Area · usa
Big Snowies
- Area
- 359 km²
- IUCN cat.
- Ib
- Year
- 1977
Overview
- Designation
- Wilderness Study Area
- IUCN category
- Ib · Zone de nature sauvage
Aire protégée pour la wilderness, faible accès humain
- Established
- 1977
- Managing authority
- Forest Service
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
698 distinct species · 4 143 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Big Snowies : 32 espèces reliées par 111 interactions GloBI sur 5 types (connectance 10.7%, filtre Serrano α=0.2). 14 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 · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
7,8km
Basins crossed
8
Max stream order
2
Max drainage
9 158km²
Discharge in basins
0,6m³/s
Mean precip.
465mm/an
Mean T°
5,1°C
Moisture idx
-0,47
Max snow
34%
Mean runoff
27mm/an
Mean elev. (basins)
1 469m
Watersheds crossing here
- Bassin de Big Spring Creeksub-area1 036,3 km²overlap103.17 km²29%
- Bassin de Roberts Creeksub-area1 673,6 km²overlap79.96 km²22%
- Bassin de Judith Riversub-area478,5 km²overlap73.66 km²21%
- Basin #61900sub-area146,8 km²overlap37.71 km²11%
- Basin #61690sub-area224,8 km²overlap30.02 km²8%
- Bassin de Musselshell Riversub-area2 379 km²overlap12.57 km²4%
- Bassin de Ross Fork Creeksub-area997,3 km²overlap12.24 km²3%
- Bassin de Musselshell Riversub-area1 039 km²overlap9.59 km²3%
Rivers / streams (1, ord ≥ 4)
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
- 46.76560, -109.39883
- 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.