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 FlowageRAMP1-5NoNo

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.