HydroBASINS lev08 watershed · #7080583100
Bassin de Arkansas 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 5 administrative regions : Custer, El Paso, Fremont, Pueblo, Teller
Sub-basin area
3 062,1km²
Upstream area
12 230,7km²
Discharge
3,19m³/s
Mean elev.
2 021m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Fourmile Creek1128 km²
- Bassin de Arkansas River103 km²
5 dept-equivalent regions (GADM L2)
- 1206.8 km²39.4% of basin
- Fremont997.5 km²32.6% of basin
- Custer418.6 km²13.7% of basin
- 255.0 km²8.3% of basin
- El Paso186.3 km²6.1% of basin
8 intersecting protected areas
Arkansas Valley
IUCN VEasement
89.90 km² overlap
Beaver Creek
IUCN IbWilderness Study Area
89.21 km² overlap
Reservoir
15.24 km² overlap
Beaver Creek
IUCN VState Habitat Area
13.01 km² overlap
Arkansas Valley
IUCN VConservation Easement
12.89 km² overlap
Aiken Canyon
IUCN VPreserve
2.19 km² overlap
Reservoir
1.57 km² overlap
Meserve SHA
IUCN VConservation Easement
0.64 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 187 distinct species · 685 505 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Arkansas River : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 3 types (connectance 22.7%, filtre Serrano α=0.2). 9 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°
7,9°C
Annual rain
408mm
Moisture idx (CMI)
-0,62
Runoff
20mm/an
PET
1 144mm
AET
349mm
Mean slope
6,4°
Water table
870cm
Forest
46%
Crops
4%
Urban
3%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)