Petenwell Lake

Petenwell Lake

Size
23196ac
Boat Launch
Yes
Carry-in Launch
Yes
Toilet
No
Boat Dock
No
Species in Petenwell Lake
Bluegill
Bluegill
Brown trout
Brown trout
Channel catfish
Channel catfish
Crappie
Crappie
Flathead catfish
Flathead catfish
Largemouth bass
Largemouth bass
Muskellunge
Muskellunge
Northern pike
Northern pike
Perch
Perch
Pumpkinseed
Pumpkinseed
Rock bass
Rock bass
Smallmouth bass
Smallmouth bass
Sturgeon
Sturgeon
Tiger muskellunge
Tiger muskellunge
Walleye
Walleye
White bass
White bass

Petenwell Lake Overview

The state's second largest lake, widely known for exciting spring walleye runs. Good numbers of white bass and crappie offer steady action. Muskie, bass and pike also available..

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

  • Hook and line fishing is open all year for fish species except muskellunge, lake sturgeon, trout, paddlefish and threatened or endangered species.
  • Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.

Special Species Regulations

  • Round goby: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
  • Ruffe: 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.
  • Shovelnose sturgeon: Closed: No fishing allowed.
  • White perch: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
  • 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: Open All Year: The minimum length is 15”, but walleye, sauger, and hybrids from 20” to 28” may not be kept, and only 1 fish over 28” is allowed. The daily bag limit is 3.
  • Trout: See specific regulations: https://dnr.wisconsin.gov/topic/fishing/trout/.
  • Northern pike: Open All Year: The minimum length limit is 32” and the daily bag limit is 1.
  • Muskellunge and hybrids: May 4, 2024 to December 31, 2024: The minimum length limit is 50” and the daily bag limit is 1.
  • 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: Open All Year: The minimum length limit is 14” and the daily bag limit is 5.

Features

Petenwell flowage was created in the late 1940’s and became the second largest inland lake in Wisconsin. The dam that blocks the Wisconsin River to form the Petenwell Flowage was created to provide hydroelectric power and flood control. Petenwell is heavily used for many recreational activities such as: boating, fishing, swimming, hunting and canoeing/kayaking. The flowage provides many opportunities for shore anglers at a variety of locations. The Petenwell Flowage has an annual catch and release muskie tournament founded by Todd Forcier and has also hosted bowfishing tournaments for rough fish. Stumps, submerged timber and shallow water make parts of the flowage difficult to navigate. Many of these hazards are not marked on this map or with buoys. Careful navigation should be used, especially in the upper third of the flowage. A navigational channel is marked with buoys from Browns Creek outlet area downstream to Yellow Banks and from Devils Elbow to the Wisconsin River channel. Buoys have also been placed along the edge of Strongs Prairie Flats to indicate the shallow and dangerous area east of the buoys. Almost the entire shoreline of Petenwell is open to public use, with a few exceptions. The public access is from the shoreline back 100 feet. This strip is marked with signs and has walking trails. The exceptions to public access are well marked.

Forage

Small suckers and other small rough fish are heavily preyed upon by muskie. Biologists believe the recent unwanted addition of freshwater drum may also provide a food source for large game fish in the future. Young panfish and white bass are food sources for many game species. Emerald shiner, bluntnose minnow, and log-perch make up the diets for a variety of species.

Seasonal Movements

Walleye congregate below the Nekoosa Dam on the Wisconsin River from mid-March through April to spawn. Creek inlets that have adequate water flow will also attract spring walleye. A second migration of walleye to the Nekoosa Dams also occurs in late September and October. Better foraging is the primary reason for the second migration. White bass will be concentrated below the Nekoosa Dam during mid-May until the end of June.
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Fish Species

Bluegill
fish
4-9 in
Length Range
7 in
Length Range
2023
Surveyed
Abundance (CPUE)
Low
2023
Surveyed
Electro
Catch Method
5.86
0Statewide Range764.78

Petenwell 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
2023
May
2023
May
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
202310
Brown trout
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
2016
Apr
2017
Mar
Channel catfish
fish
17-20 in
Length Range
19 in
Length Range
2023
Surveyed
Abundance (CPUE)
Outlier
2023
Surveyed
Trapnet
Catch Method
0.34
0Statewide Range0.18

Petenwell Lake Channel catfish 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
2023
May
Crappie
fish
7-12 in
Length Range
10 in
Length Range
2023
Surveyed
Abundance (CPUE)
Low
2023
Surveyed
Electro
Catch Method
1.67
0Statewide Range80.53

Petenwell 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
2023
May
2023
May
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
202310
Flathead 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
2016
Apr
Largemouth 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
2015
Nov
2016
Apr
2023
May
Muskellunge
fish
No survey data
Abundance (CPUE)
No survey data
0.37
0Statewide Range6.49

Petenwell Lake Muskellunge 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
Oct
2023
May
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
202310
Northern pike
fish
15-20 in
Length Range
18 in
Length Range
2023
Surveyed
Abundance (CPUE)
Low
2023
Surveyed
Electro
Catch Method
0.46
0Statewide Range15.56

Petenwell 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
2023
May
2023
May
Perch
fish
5-13 in
Length Range
8 in
Length Range
2023
Surveyed
Abundance (CPUE)
Below Avg.
2023
Surveyed
Trapnet
Catch Method
0.07
0Statewide Range0.74

Petenwell 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
2023
May
2023
May
Pumpkinseed
fish
5-6 in
Length Range
6 in
Length Range
2023
Surveyed
Abundance (CPUE)
Low
2023
Surveyed
Electro
Catch Method
0.98
0Statewide Range85.42

Petenwell 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
2023
May
2023
May
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
2021
Oct
2023
May
Smallmouth bass
fish
8-20 in
Length Range
13 in
Length Range
2023
Surveyed
Abundance (CPUE)
High
2023
Surveyed
Electro
Catch Method
16.01
0Statewide Range29.72

Petenwell 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
2023
May
2023
May
Sturgeon
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
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
8-19 in
Length Range
12 in
Length Range
2023
Surveyed
Abundance (CPUE)
High
2023
Surveyed
Electro
Catch Method
80
0Statewide Range105.87

Petenwell 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
2023
May
2023
May
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
202310
White bass
fish
No survey data
Abundance (CPUE)
No survey data
0.03
0Statewide Range0.18

Petenwell Lake White 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
Oct
2023
May