Rockville Flowage

Manitowoc County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)76
Maximum Depth (ft)6
Mean Depth (ft)2
Shoreline (miles)—
Bottom Composition0% sand, 5% gravel, 5% rock, 90% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classflowage
Public Access—
Township—
GPS Coordinates43.92230° N, 88.01060° W
WBIC (DNR ID)58400

Fish Species

3 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant—
Largemouth BassCommon—
Northern PikePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Sisson Park Boat RampRAMP—1-5NoNo

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
Zebra MusselConfirmed—

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

Rockville Flowage — Facts & Figures | Stay Northern