Caldron Falls Reservoir*

Marinette, Oconto County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)1,063
Maximum Depth (ft)40
Mean Depth (ft)15
Shoreline (miles)
Bottom Composition60% sand, 15% gravel, 10% rock, 15% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classflowage
Public Access
Township
GPS Coordinates45.35730° N, 88.23170° W
WBIC (DNR ID)545400

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
MuskyCommon
Northern PikeCommon
PanfishPresent
WalleyePresent

Boat Landings

5 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public
Boat Landing 3Public
Boat Landing 4Public
Boat Landing 5Public

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
Curly-Leaf PondweedConfirmed
Eurasian Water-MilfoilConfirmed
Phragmites (non-native)Confirmed
Zebra MusselConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 3/24/2026.

Caldron Falls Reservoir* — Facts & Figures | Stay Northern