HydroBASINS lev08 watershed · #7080594140
Bassin de San Luis Creek
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 : Chaffee, Custer, Fremont, Saguache
Sub-basin area
1 892,6km²
Upstream area
1 892,9km²
Discharge
0,84m³/s
Mean elev.
2 720m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1886.4 km²99.6% of basin
- 3.6 km²0.2% of basin
- Fremont2.7 km²0.1% of basin
- Custer1.1 km²0.1% of basin
10 intersecting protected areas
Sangre de Cristo
IUCN IbWilderness Area
274.31 km² overlap
Baca
IUCN IVNational Wildlife Refuge
244.23 km² overlap
Great Sand Dunes
IUCN VNational Preserve
108.75 km² overlap
Deadman Creek
IUCN IaResearch Natural Area
19.13 km² overlap
Mill Creek
IUCN IaResearch Natural Area
10.36 km² overlap
Upper San Luis Valley
IUCN VEasement
5.11 km² overlap
Black Canyon
IUCN IbWilderness Study Area
4.84 km² overlap
Lake
4.81 km² overlap
Villa Grove
IUCN VGrove
3.58 km² overlap
1 more protected areassorted by overlap area
Medano / Zapata Ranch
IUCN VConservation Easement
3.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 692 distinct species · 23 808 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 San Luis Creek : 27 espèces reliées par 146 interactions GloBI sur 5 types (connectance 16.2%, filtre Serrano α=0.2). 16 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°
3,6°C
Annual rain
377mm
Moisture idx (CMI)
-0,57
Runoff
14mm/an
PET
967mm
AET
317mm
Mean slope
8,9°
Water table
576cm
Forest
52%
Crops
10%
Urban
0%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)