Rock Lake
Size
1371ac
Boat Launch
Yes
Carry-in Launch
Yes
Toilet
No
Boat Dock
No
Species in Rock Lake
Bluegill
Bluegill
Catfish
Catfish
Crappie
Crappie
Largemouth bass
Largemouth bass
Northern pike
Northern pike
Perch
Perch
Pumpkinseed
Pumpkinseed
Rock bass
Rock bass
Smallmouth bass
Smallmouth bass
Walleye
Walleye
White bass
White bass

Rock Lake Overview

Plenty of smallmouth for excellent action. Check the walleye, crappie and bluegill too!

Fishing Regulations

Special Fishing regulations: This lake has special fishing regulations that differ from statewide or border water regulations for those species identified below and take precedence. Regulations listed below are currently in place. Visit the fishing regulations page for links to upcoming regulations for specific lakes.

Special Waterbody Regulations

  • Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.
  • Catch and release fishing for largemouth and smallmouth bass is open year round unless otherwise noted.

Special Species Regulations

  • Panfish: Open All Year: No minimum length limit and the daily bag limit is 25.
  • White perch: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
  • Shovelnose sturgeon: Closed: No fishing allowed.
  • Ruffe: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
  • Round goby: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
  • Rough fish: Open All Year: No minimum length limit and the daily bag limit is unlimited.
  • Rock, yellow, and white bass: Open All Year: No minimum length limit and the daily bag limit is unlimited.
  • Paddlefish: Closed: No fishing allowed.
  • Lake sturgeon: Closed: No fishing allowed.
  • Cisco and whitefish: Open All Year: No minimum length limit and the daily bag limit is 10.
  • Bullheads: Open All Year: No minimum length limit and the daily bag limit is unlimited.
  • Walleye, sauger, and hybrids: May 4, 2024 to March 2, 2025: The minimum length limit is 15” and the daily bag limit is 3.
  • Trout: See specific regulations: https://dnr.wisconsin.gov/topic/fishing/trout/.
  • Northern pike: May 4, 2024 to March 2, 2025: The minimum length limit is 26” and the daily bag limit is 2.
  • Muskellunge and hybrids: May 4, 2024 to December 31, 2024: The minimum length limit is 40” and the daily bag limit is 1.
  • Largemouth bass and smallmouth bass: May 4, 2024 to March 2, 2025: The minimum length limit is 14” and the daily bag limit is 5.
  • Catfish: Open All Year: No minimum length limit and the daily bag limit is 10.

Forage

Brook silversides, shiners, sucker and juvenile perch.
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Fish Species

Bluegill
fish
2-10 in
Length Range
4 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Electro
Catch Method
357
0Statewide Range764.78

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
2022
Apr
2022
Jun
Catfish
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
Crappie
fish
No survey data
Abundance (CPUE)
No survey data
0.06
0Statewide Range5.85

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
2013
Oct
2014
May
2022
Apr
Largemouth bass
fish
7-16 in
Length Range
11 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Electro
Catch Method
49.25
0Statewide Range102.12

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
2022
Apr
2022
Jun
Northern pike
fish
9-23 in
Length Range
14 in
Length Range
2022
Surveyed
Abundance (CPUE)
Low
2022
Surveyed
Electro
Catch Method
1.33
0Statewide Range15.56

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
2022
Apr
2022
Jun
Perch
fish
5-9 in
Length Range
7 in
Length Range
2022
Surveyed
Abundance (CPUE)
Low
2022
Surveyed
Trapnet
Catch Method
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
2022
Apr
2022
Jun
Pumpkinseed
fish
3-9 in
Length Range
6 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Electro
Catch Method
34
0Statewide Range85.42

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
2022
Apr
2022
Jun
Rock bass
fish
5-10 in
Length Range
7 in
Length Range
2022
Surveyed
Abundance (CPUE)
High
2022
Surveyed
Electro
Catch Method
46.67
0Statewide Range64.11

Rock Lake Rock 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
2022
Apr
2022
Jun
Smallmouth bass
fish
7-17 in
Length Range
11 in
Length Range
2022
Surveyed
Abundance (CPUE)
High
2022
Surveyed
Electro
Catch Method
21
0Statewide Range29.72

Rock Lake Smallmouth 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
2022
Apr
2022
Jun
Walleye
fish
14-20 in
Length Range
17 in
Length Range
2022
Surveyed
Abundance (CPUE)
Above Avg.
2022
Surveyed
Electro
Catch Method
14.84
0Statewide Range105.87

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
2022
Apr
2022
Jun
White 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
2014
May