HydroBASINS lev08 watershed · #7080317450
Bassin de Milk 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 1 administrative regions : Phillips
Sub-basin area
904,1km²
Upstream area
33 393,5km²
Discharge
11,33m³/s
Mean elev.
793m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cottonwood Creek2355 km²
- Bassin de Milk River1856 km²
1 dept-equivalent regions (GADM L2)
- Phillips906.9 km²100.0% of basin
5 intersecting protected areas
Phillips County
IUCN VWaterfowl Production Area
43.78 km² overlap
Phillips County Waterfowl Production Area 10
IUCN Not AssignedWaterfowl Production Area
35.61 km² overlap
Hewitt Lake
IUCN IVNational Wildlife Refuge
2.91 km² overlap
Cree Crossing
IUCN VWildlife Management Area
1.63 km² overlap
Wildlife Management Area
0.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
358 distinct species · 16 470 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Milk River : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 3 types (connectance 16.0%, 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°
4,5°C
Annual rain
306mm
Moisture idx (CMI)
-0,67
Runoff
6mm/an
PET
932mm
AET
272mm
Mean slope
1,7°
Water table
350cm
Forest
0%
Crops
26%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)