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Natural lake

Grindstone Lake

Sawyer, Wisconsin

Grindstone Lake is a 3,176-acre lake in Sawyer County about six miles southeast of Hayward, with a maximum depth of 60 feet and a mean depth near 30 feet. The eastern portion lies within the Lac Courte Oreilles reservation; WDNR lists walleye as abundant.

N1 mi
Air temp in Hayward, WI Loading current temperature…
Map data © OpenStreetMap contributors.
Surface area3,176 acres
Max depth60 ft
Shoreline10.5 mi
Boat motorsCheck local ordinances

Species

Fishery rating out of 5.

Walleye●●●●○

Listed as abundant by WDNR

Muskellunge●●●○○

Listed as common by WDNR

Smallmouth Bass●●●○○

Listed as common by WDNR

Northern Pike●●●○○

Listed as common by WDNR

Largemouth Bass●●○○○

Listed as present by WDNR

Bluegill●●○○○

Panfish listed as present

Crappie●●○○○

Panfish listed as present

Yellow Perch●●○○○

Panfish listed as present

Boat launches

2 launch sites. Fees and hours change, so confirm before you go.

  • Grindstone Lake public boat landingsPublic
    WDNR and Wikipedia list 2 public landingsDirections ↗
  • More public accessPublic
    See the WDNR lake page for all landingsDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

SpeciesMin sizeDaily limit
Walleye
May 2, 2026-Mar 7, 2027
None (14-18 in may not be kept)3 / day (1 over 18 in max)
Largemouth Bass
May 2-June 19, 2026
See Wisconsin rules book ↗5 / day
Largemouth/Smallmouth Bass
June 20, 2026-Mar 7, 2027
See Wisconsin rules book ↗5 / day total (1 smallmouth only, 18 in+)
Smallmouth Bass
May 2-June 19, 2026; catch and release only
See Wisconsin rules book ↗0 / day
Northern Pike
May 2, 2026-Mar 7, 2027
See Wisconsin rules book ↗5 / day
Muskellunge
May 2-Dec 31, 2026; open water only
50 in1 / day
Panfish
Open all year
See Wisconsin rules book ↗25 / day
Catfish
Open all year
See Wisconsin rules book ↗10 / day
Lake Sturgeon
Closed; no fishing allowed
See Wisconsin rules book ↗0 / day

Other species in this lake: look up the limits at Wisconsin DNR ↗

Verified October 2026. Rules change, so confirm current limits with the Wisconsin DNR before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

Search more bait shops near Grindstone Lake ↗

Local tips

  • Sand, gravel and rock bottom (about 70% sand/gravel) suits walleye and smallmouth on points and humps
  • Deep clear-to-moderate water: try leeches or jigs on rock edges
  • Confirm reservation-specific rules for the eastern portion

View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.

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Always wear a life jacket and check your state's current regulations before you fish.