Grindstone Lake Overview
Trophy smallies in the 18in.+ category are hiding here. Crappie action is above average and so is the size! The 2-lb, 14oz state record was caught on Grindstone. Muskie, northern and walleye present.
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.
Special Species Regulations
- 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: No minimum length, but walleye, sauger, and hybrids from 14” to 18” may not be kept, and only 1 fish over 18 is allowed. 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: No minimum length limit and the daily bag limit is 5.
- Muskellunge and hybrids: May 25, 2024 to December 31, 2024: The minimum length limit is 50” and the daily bag limit is 1.
- Largemouth bass: May 4, 2024 to June 14, 2024: No minimum length limit and the daily bag limit is 5.
- Smallmouth bass: June 15, 2024 to March 2, 2025: The minimum length limit is 18” and the daily bag limit is 1.
- Smallmouth bass: May 4, 2024 to June 14, 2024: Fish may not be harvested (catch and release only).
- Largemouth bass and smallmouth bass: June 15, 2024 to March 2, 2025: No minimum length limit and the daily bag limit is 5, no minimum length limit and the daily bag limit is 5, of which only one smallmouth bass may be kept, and it must be over 18 inches.
- Panfish: Open All Year: No minimum length limit and the daily bag limit is 25.
- Rock, yellow, and white bass: Open All Year: No minimum length limit and the daily bag limit is unlimited.
- White perch: 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.
- Catfish: Open All Year: No minimum length limit and the daily bag limit is 10.
- 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.
- Rough fish: 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.
Forage
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Fish Species
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.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.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.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.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.| Survey Year | Largest Fish (in) |
|---|---|
| 2018 | 50 |
| 2016 | 50 |
| 2015 | 50 |
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.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.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.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.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.Grindstone Lake Walleye abundance
Average range for similar lakes
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.| Survey Year | Largest Fish (in) |
|---|---|
| 2018 | 50 |
| 2016 | 50 |
| 2015 | 50 |
