Sandstone Flowage

Marinette County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)127
Maximum Depth (ft)39
Mean Depth (ft)10
Shoreline (miles)—
Bottom Composition80% sand, 15% gravel, 0% rock, 5% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classflowage
Public Access—
Township—
GPS Coordinates45.22780° N, 88.08340° W
WBIC (DNR ID)531300

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Smallmouth BassCommon—
WalleyeCommon—
Largemouth BassPresent—
Northern PikePresent—
PanfishPresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Sandstone Flowage AccessRAMP—1-5—No

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
Eurasian Water-MilfoilConfirmed—
Hybrid Eurasian / Northern Water-MilfoilConfirmed—
Zebra MusselConfirmed—

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