HydroBASINS lev08 watershed · #7080405120

Bassin de Little Minnesota 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 6 administrative regions : Big Stone, Grant, Marshall, Richland, Roberts +1

30% lakePfafstetter: 74288909

Sub-basin area

1 903,4km²

Upstream area

1 903,4km²

Discharge

5,69m³/s

Mean elev.

382m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Minnesota River74 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

Roberts
South Dakota · United States
1249.9 km²
65.5% of basin
Big Stone
Minnesota · United States
417.9 km²
21.9% of basin
Marshall
South Dakota · United States
124.5 km²
6.5% of basin
Traverse
Minnesota · United States
81.7 km²
4.3% of basin
Grant
South Dakota · United States
22.2 km²
1.2% of basin
Richland
North Dakota · United States
11.7 km²
0.6% of basin

30 intersecting protected areas

Roberts County
IUCN V
Waterfowl Production Area
33.13 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
16.76 km² overlap
Roberts County
IUCN V
Waterfowl Production Area
16.31 km² overlap
Wetlands Reserve Program (WRP), Roberts, SD
IUCN V
Reserve Program
14.65 km² overlap
Traverse County
IUCN VI
Waterfowl Production Area
6.12 km² overlap
Big Stone County
IUCN VI
Waterfowl Production Area
6.10 km² overlap
Sica Hollow
IUCN V
State Recreation Area
3.61 km² overlap
Emergency Wetlands Reserve Program (EWetlands Reserve Program (WRP)), Roberts, SD
IUCN V
Reserve Program
2.84 km² overlap
Roberts County
IUCN V
Waterfowl Production Area
2.74 km² overlap

21 more protected areassorted by overlap area

Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Roberts, SD
IUCN V
Conservation Easement
2.23 km² overlap
Peever Slough + 40
IUCN V
State Wildlife Management Area
2.09 km² overlap
Hornstein
IUCN V
State Wildlife Management Area
1.34 km² overlap
Hartford
IUCN III
Beach
1.33 km² overlap
Eastman
IUCN V
State Wildlife Management Area
1.33 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
1.32 km² overlap
Martin County
IUCN V
Waterfowl Production Area
1.29 km² overlap
Roberts County
IUCN V
Waterfowl Production Area
1.29 km² overlap
Metz
IUCN V
State Wildlife Management Area
1.18 km² overlap
Grant County
IUCN V
Waterfowl Production Area
0.98 km² overlap
Big Stone
IUCN V
State Wildlife Management Area
0.94 km² overlap
David H. Steen
IUCN V
State Wildlife Management Area
0.75 km² overlap
Mallard Hole
IUCN V
State Wildlife Management Area
0.63 km² overlap
Big Stone County
IUCN V
Waterfowl Production Area
0.56 km² overlap
Smith
IUCN V
State Wildlife Management Area
0.46 km² overlap
Foley
IUCN V
State Wildlife Management Area
0.45 km² overlap
Bonanza Prairie
IUCN V
State Research Area
0.44 km² overlap
Northern Tallgrass Prairie
IUCN V
National Wildlife Refuge
0.43 km² overlap
Big Stone Island
IUCN V
Nature Area
0.43 km² overlap
Clinton Prairie State Scientific and
IUCN V
Natural Area
0.35 km² overlap
Other - Perpetual
IUCN V
Conservation Easement
0.35 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 517 distinct species · 86 983 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Little Minnesota River : 26 espèces reliées par 76 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.128

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,3°C

Annual rain

540mm

Moisture idx (CMI)

-0,43

Runoff

80mm/an

PET

948mm

AET

465mm

Mean slope

0,9°

Water table

40cm

Forest

Crops

69%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)