Twin Bear Lake

Bayfield County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)157
Maximum Depth (ft)59
Mean Depth (ft)23
Shoreline (miles)—
Bottom Composition35% sand, 25% gravel, 35% rock, 5% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates46.50580° N, 91.36730° W
WBIC (DNR ID)2903100

Fish Species

6 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassAbundant—
PanfishCommon—
Smallmouth BassCommon—
WalleyeCommon—
MuskyPresent—
Northern PikePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Twin Bear County ParkRAMP—6-10YesNo

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
Chinese Mystery SnailConfirmed—
Eurasian Water-MilfoilConfirmed—
Rusty CrayfishConfirmed—

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