Rock Dam Lake

Rock Dam Lake

Size
96ac
Boat Launch
Yes
Carry-in Launch
No
Toilet
No
Boat Dock
No
Species in Rock Dam Lake
Bluegill
Bluegill
Crappie
Crappie
Largemouth bass
Largemouth bass
Muskellunge
Muskellunge
Northern pike
Northern pike
Perch
Perch
Pumpkinseed
Pumpkinseed
Tiger muskellunge
Tiger muskellunge
Walleye
Walleye

Rock Dam Lake Overview

Fishing Regulations in Rock Dam Lake

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

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

Special Species Regulations

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

Bluegill
fish
3-9 in
Length Range
7 in
Length Range
2021
Surveyed
Abundance (CPUE)
Low
2021
Surveyed
Trapnet
Catch Method
0.21
0Statewide Range38.665

Rock Dam 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
5-12 in
Length Range
8 in
Length Range
2021
Surveyed
Abundance (CPUE)
Low
2021
Surveyed
Trapnet
Catch Method
0.24
0Statewide Range5.835

Rock Dam 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
12-21 in
Length Range
17 in
Length Range
2021
Surveyed
Abundance (CPUE)
Low
2021
Surveyed
Trapnet
Catch Method
0.01
0Statewide Range0.09

Rock Dam 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
Muskellunge
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
Northern pike
fish
10-37 in
Length Range
23 in
Length Range
2021
Surveyed
Abundance (CPUE)
Below Avg.
2021
Surveyed
Trapnet
Catch Method
0.13
0Statewide Range0.33

Rock Dam 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
5-10 in
Length Range
6 in
Length Range
2021
Surveyed
Abundance (CPUE)
Below Avg.
2021
Surveyed
Trapnet
Catch Method
0.03
0Statewide Range0.74

Rock Dam 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
6 in
Length Range
2021
Surveyed
Abundance (CPUE)
Low
2021
Surveyed
Trapnet
Catch Method
0.01
0Statewide Range4.47

Rock Dam 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
Tiger muskellunge
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
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