HydroBASINS lev08 watershed · #7080538570
Bassin de Fraser 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 : Boulder, Clear Creek, Gilpin, Grand
Sub-basin area
782,9km²
Upstream area
782,9km²
Discharge
3,46m³/s
Mean elev.
2 972m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Grand783.2 km²99.9% of basin
- 0.3 km²0.0% of basin
- 0.1 km²0.0% of basin
- 0.0 km²0.0% of basin
10 intersecting protected areas
Protection Area (National)
69.51 km² overlap
Vasquez Peak
IUCN IbWilderness
46.80 km² overlap
Indian Peaks
IUCN IbWilderness Area
23.07 km² overlap
Non-Governmental Lands
6.27 km² overlap
Snow Mountain Ranch
IUCN Not AssignedConservation Easement
5.85 km² overlap
Non-Governmental Lands
2.44 km² overlap
Ranch Creek Diversion
IUCN VNon-Governmental Lands
2.29 km² overlap
Granby Ranch CE SHA
IUCN VConservation Easement
1.80 km² overlap
James Peak
IUCN IbWilderness
1.40 km² overlap
1 more protected areassorted by overlap area
Byers Peak
IUCN IbWilderness
0.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 269 distinct species · 63 594 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Fraser River : 25 espèces reliées par 93 interactions GloBI sur 5 types (connectance 14.0%, 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°
0,7°C
Annual rain
607mm
Moisture idx (CMI)
-0,22
Runoff
145mm/an
PET
803mm
AET
483mm
Mean slope
12,2°
Water table
553cm
Forest
95%
Crops
1%
Urban
0%
Protected
30%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)