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 Launch #9 - Muskellunge PointRAMP—Greater than 25NoYes
Boat Launch #11 - Crandall CreekRAMP—6-10NoNo
Boat Launch #8 - Caldron BayRAMP—11-15NoYes
Boat Launch #10 - North BayRAMP—6-10NoNo
Boat Launch #13 - South BayRAMP—Gr50YesYes

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: 4/30/2026.

Caldron Falls Reservoir* — Facts & Figures | Stay Northern