Eau Claire Flowage

Marathon County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)184
Maximum Depth (ft)10
Mean Depth (ft)4
Shoreline (miles)
Bottom Composition45% sand, 10% gravel, 0% rock, 45% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classflowage
Public Access
Township
GPS Coordinates44.91970° N, 89.60720° W
WBIC (DNR ID)1437800

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Northern PikeCommon
PanfishCommon
Smallmouth BassCommon
Largemouth BassPresent

Boat Landings

1 landing

NameTypeRampTrailersFee
Public Boat LandingPublic

Invasive Species

Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.

SpeciesStatusFirst Detected
Banded Mystery SnailConfirmed
Chinese Mystery SnailConfirmed
Eurasian Water-MilfoilConfirmed
Rusty CrayfishConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 3/24/2026.