HydroBASINS lev08 watershed · #7080390050

Bassin de Big Sheep Creek

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 3 administrative regions : Baker, Union, Wallowa

Pfafstetter: 78291012

Sub-basin area

2 194,5km²

Upstream area

2 194,6km²

Discharge

22,08m³/s

Mean elev.

1 478m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Snake River30 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

Wallowa
Oregon · United States
2173.7 km²
98.8% of basin
Baker
Oregon · United States
19.3 km²
0.9% of basin
Union
Oregon · United States
6.7 km²
0.3% of basin

10 intersecting protected areas

Eagle Cap
IUCN Ib
Wilderness
228.92 km² overlap
Zumwalt Prairie
IUCN V
Private Conservation Land
109.98 km² overlap
Imnaha, Oregon
IUCN V
Wild and Scenic River
70.47 km² overlap
Imnaha, Oregon
IUCN V
Wild and Scenic River
20.48 km² overlap
Clear Lake Ridge
IUCN V
Lake
13.95 km² overlap
Hells Canyon-Seven Devils
IUCN V
Scenic Area
6.67 km² overlap
Imnaha, Oregon
IUCN V
Wild and Scenic River
4.93 km² overlap
Hells Canyon
IUCN Ib
Wilderness
4.40 km² overlap
Mount Howard-East Peak
IUCN III
National Natural Landmark
1.83 km² overlap

1 more protected areassorted by overlap area

Duck Lake
IUCN Ia
Research Natural Area
0.76 km² overlap

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

Species present

1 809 distinct species · 33 460 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 Big Sheep Creek : 22 espèces reliées par 100 interactions GloBI sur 4 types (connectance 15.9%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

100

Connectance

0.159

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°

4,3°C

Annual rain

577mm

Moisture idx (CMI)

-0,35

Runoff

318mm/an

PET

911mm

AET

474mm

Mean slope

17,2°

Water table

631cm

Forest

77%

Crops

Urban

Protected

11%

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