Long Lake

Bayfield County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)280
Maximum Depth (ft)28
Mean Depth (ft)12
Shoreline (miles)—
Bottom Composition80% sand, 5% gravel, 5% rock, 10% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates46.58190° N, 91.34370° W
WBIC (DNR ID)2767100

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Northern PikeAbundant—
PanfishAbundant—
Largemouth BassCommon—
WalleyePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Long Lake Boat LaunchRAMP—1-5YesNo

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
Japanese knotweed (Fallopia japonica)Confirmed—
Purple LoosestrifeConfirmed—
Rusty CrayfishConfirmed—

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

Long Lake — Facts & Figures | Stay Northern