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 PointRAMPGreater than 25NoYes
Boat Launch #11 - Crandall CreekRAMP6-10NoNo
Boat Launch #8 - Caldron BayRAMP11-15NoYes
Boat Launch #10 - North BayRAMP6-10NoNo
Boat Launch #13 - South BayRAMPGr50YesYes

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.