Fenner Lake

Marquette, Adams County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)41
Maximum Depth (ft)18
Mean Depth (ft)5
Shoreline (miles)—
Bottom Composition49% sand, 1% gravel, 0% rock, 50% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates43.86390° N, 89.59830° W
WBIC (DNR ID)103400

Fish Species

3 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishCommon—
Largemouth BassPresent—
Northern PikePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Fenner Lake Boat RampRAMP—1-5——

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
Banded Mystery SnailConfirmed—
Chinese Mystery SnailConfirmed—
Curly-Leaf PondweedConfirmed—
Eurasian Water-MilfoilConfirmed—

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/29/2026.

Fenner Lake — Facts & Figures | Stay Northern