Tolna Dam
Size
152ac
Boat Launch
Yes
Carry-in Launch
No
Toilet
No
Boat Dock
No
Species in Tolna Dam
Walleye
Walleye
Perch
Perch
Smallmouth bass
Smallmouth bass
Bluegill
Bluegill
Northern pike
Northern pike

Overview

Tolna Dam Map

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Fish Species

Bluegill
fish
No survey data
Abundance (CPUE)
No abundance data
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
No Survey Data
Northern pike
fish
16-17 in
Length Range
17 in
Length Range
2025
Surveyed
Abundance (CPUE)
Low
2025
Surveyed
Gillnet
Catch Method
1.3333
0Statewide Range10.50505

Tolna Dam Northern pike abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2025
Jun
Perch
fish
16-17 in
Length Range
17 in
Length Range
2025
Surveyed
Abundance (CPUE)
Low
2025
Surveyed
Gillnet
Catch Method
1
0Statewide Range37.51665

Tolna Dam Perch abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2015
Jun
2025
Jun
Trophy Potential
This lake has a history of supporting trophy sized perch based on past surveys.
Survey YearLargest Fish (in)
202512
Smallmouth bass
fish
No survey data
Abundance (CPUE)
No abundance data
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
No Survey Data
Walleye
fish
16-17 in
Length Range
17 in
Length Range
2025
Surveyed
Abundance (CPUE)
Low
2025
Surveyed
Gillnet
Catch Method
0.3333
0Statewide Range34.11155

Tolna Dam Walleye abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2025
Jun