Rock Lake
Size
1197ac
Boat Launch
Yes
Carry-in Launch
No
Toilet
No
Boat Dock
Yes
Species in Rock Lake
Bluegill
Bluegill
Crappie
Crappie
Largemouth bass
Largemouth bass
Northern pike
Northern pike
Perch
Perch
Pumpkinseed
Pumpkinseed
Rock bass
Rock bass
Walleye
Walleye

Rock Lake Overview

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Fish Species

Bluegill
fish
3-9 in
Length Range
7 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Trapnet
Catch Method
13.64
0Statewide Range74.63

Rock Lake Bluegill 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
Crappie
fish
5-13 in
Length Range
9 in
Length Range
2022
Surveyed
Abundance (CPUE)
Below Avg.
2022
Surveyed
Trapnet
Catch Method
1
0Statewide Range10.56

Rock Lake Crappie 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
Largemouth bass
fish
9-17 in
Length Range
15 in
Length Range
2022
Surveyed
Abundance (CPUE)
High
2022
Surveyed
Gillnet
Catch Method
1.13
0Statewide Range3.68

Rock Lake Largemouth bass 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
Northern pike
fish
11-33 in
Length Range
19 in
Length Range
2022
Surveyed
Abundance (CPUE)
High
2022
Surveyed
Gillnet
Catch Method
16.63
0Statewide Range19.6

Rock Lake 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
Perch
fish
5-12 in
Length Range
7 in
Length Range
2022
Surveyed
Abundance (CPUE)
Below Avg.
2022
Surveyed
Gillnet
Catch Method
7.63
0Statewide Range43.55

Rock Lake 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
Pumpkinseed
fish
4-8 in
Length Range
7 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Trapnet
Catch Method
3
0Statewide Range8.58

Rock Lake Pumpkinseed 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
Rock bass
fish
No survey data
Abundance (CPUE)
No survey 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
19-28 in
Length Range
23 in
Length Range
2022
Surveyed
Abundance (CPUE)
Low
2022
Surveyed
Gillnet
Catch Method
2
0Statewide Range16.93

Rock Lake 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