HydroBASINS lev08 watershed · #7080577430
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 : Chaffee, Custer, Fremont, Park, Saguache
Sub-basin area
1 974km²
Upstream area
5 593,3km²
Discharge
1,38m³/s
Mean elev.
2 631m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arkansas River3054 km²
- Bassin de Poncha Creek565 km²
5 dept-equivalent regions (GADM L2)
- Fremont1455.1 km²73.7% of basin
- Park219.0 km²11.1% of basin
- Custer204.3 km²10.3% of basin
- 93.9 km²4.8% of basin
- 3.1 km²0.2% of basin
6 intersecting protected areas
Sangre de Cristo
IUCN IbWilderness Area
192.75 km² overlap
Mcintyre Hills
IUCN IbWilderness Study Area
52.86 km² overlap
High Mesa Grassland
IUCN IbWilderness Study Area
1.17 km² overlap
Upper Kennicott Conservation Easement, Phase I / Wet Mountain Valley Ranchland Preservation Legacy
IUCN Not AssignedConservation Easement
0.66 km² overlap
Treat/Ogden
IUCN Not AssignedState Wildlife Area
0.11 km² overlap
Coaldale Ponds
IUCN VPond
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 895 distinct species · 121 639 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 : 20 espèces reliées par 62 interactions GloBI sur 4 types (connectance 16.4%, filtre Serrano α=0.2). 8 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°
3,9°C
Annual rain
373mm
Moisture idx (CMI)
-0,60
Runoff
16mm/an
PET
983mm
AET
320mm
Mean slope
11,6°
Water table
782cm
Forest
88%
Crops
3%
Urban
0%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)