Third Lake

Trempealeau County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)35
Maximum Depth (ft)8
Mean Depth (ft)4
Shoreline (miles)
Bottom Composition98% sand, 0% gravel, 0% rock, 2% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classlake
Public Access
Township
GPS Coordinates43.99290° N, 91.41090° W
WBIC (DNR ID)728700

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
Northern PikeCommon
PanfishCommon
WalleyePresent

Boat Landings

2 landings

NameTypeRampTrailersFee
Third Lake Access NorthRAMP21-25NoNo
Third Lake Access SouthRAMP16-20NoNo

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

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