HydroBASINS lev08 watershed · #7080327480
Bassin · #7080327480
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 : Benson, Pierce, Rolette, Towner
Sub-basin area
778,1km²
Upstream area
778,1km²
Discharge
0,47m³/s
Mean elev.
481m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 470.7 km²60.3% of basin
- Pierce186.0 km²23.8% of basin
- 105.2 km²13.5% of basin
- 18.6 km²2.4% of basin
13 intersecting protected areas
Benson County
IUCN VWaterfowl Production Area
10.89 km² overlap
Reserve Program
6.62 km² overlap
Silver Lake
IUCN VNational Wildlife Refuge
5.14 km² overlap
Reserve Program
4.41 km² overlap
Benson County
IUCN VWaterfowl Production Area
3.98 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Benson, ND
IUCN Not AssignedConservation Easement
3.00 km² overlap
Conservation Easement
2.99 km² overlap
Pierce County
IUCN VIWaterfowl Production Area
2.25 km² overlap
Reserve Program
1.69 km² overlap
4 more protected areassorted by overlap area
Pierce County
IUCN VWaterfowl Production Area
0.96 km² overlap
Nesvig
IUCN VState Wildlife Management Area
0.58 km² overlap
Towner County
IUCN VWaterfowl Production Area
0.23 km² overlap
Watershed Protection
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
689 distinct species · 3 365 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 · #7080327480 : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 142 interactions GloBI sur 4 types (connectance 20.2%, filtre Serrano α=0.2). 21 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°
3,4°C
Annual rain
439mm
Moisture idx (CMI)
-0,49
Runoff
27mm/an
PET
857mm
AET
382mm
Mean slope
0,5°
Water table
12cm
Forest
0%
Crops
84%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)