Big Falls Flowage

Rusk County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)281
Maximum Depth (ft)45
Mean Depth (ft)11
Shoreline (miles)—
Bottom Composition60% sand, 18% gravel, 20% rock, 2% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classflowage
Public Access—
Township—
GPS Coordinates45.56970° N, 90.95220° W
WBIC (DNR ID)2230100

Fish Species

8 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Smallmouth BassCommon—
WalleyeCommon—
CatfishPresent—
Largemouth BassPresent—
MuskyPresent—
Northern PikePresent—
PanfishPresent—
SturgeonPresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Big Falls FlowageRAMP—1-5NoNo

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
Curly-Leaf PondweedConfirmed—
Eurasian Water-MilfoilConfirmed—

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/30/2026.