HydroBASINS lev08 watershed · #7080015740

Bassin de Mill 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 1 administrative regions : Mason

14% lakePfafstetter: 78310378

Sub-basin area

496,8km²

Upstream area

496,8km²

Discharge

24,48m³/s

Mean elev.

96m

Administrative coverage

1 dept-equivalent regions (GADM L2)

Mason
Washington · United States
487.2 km²
97.8% of basin

9 intersecting protected areas

Shumocher Creek
IUCN V
Natural Area Preserve
1.99 km² overlap
Ink Blot
IUCN V
Natural Area Preserve
0.58 km² overlap
Wetlands Reserve Program (WRP), Mason, WA
IUCN V
Reserve Program
0.53 km² overlap
Rhode Ranch
IUCN V
Environmental System
0.51 km² overlap
Green Diamond
IUCN V
Environmental System
0.49 km² overlap
Oakland Bay County Park
IUCN Not Assigned
Conservation Easement
0.35 km² overlap
Bayshore
IUCN V
Golf Course
0.19 km² overlap
Rose
IUCN V
Environmental System
0.18 km² overlap
Bayshore Tidal Salt Marsh
IUCN V
Environmental System
0.11 km² overlap

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

Species present

1 655 distinct species · 71 056 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Mill Creek : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.101

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°

10,4°C

Annual rain

1 631mm

Moisture idx (CMI)

0,44

Runoff

1 424mm/an

PET

905mm

AET

632mm

Mean slope

3,4°

Water table

147cm

Forest

99%

Crops

Urban

Protected

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