Northern pike lake, Bass lake, Crappie lake, Sunfish lake, Trout lake
Grindstone Lake
Lake-specific eating advicePublic accessStocked 2025
Grindstone Lake is a 533-acre lake in Pine County, 153 feet at its deepest. The DNR last surveyed its fish in 2025. Recorded species include northern pike, largemouth bass, smallmouth bass, crappie and trout.
Details
- DNR lake ID
- 58012300
- County
- Pine
- Surface area
- 533 acres
- Maximum depth
- 153 feet
- Mean depth
- 60 feet
- Shallow water (littoral) area
- 71 acres, 13% of the lake
- Shoreline
- 5.0 miles
- Average water clarity
- 10.7 feet (Secchi disk, 5 readings)
- Latest DNR fish survey
- August 2025, targeted survey
- Surveys on record
- 15, since 1980
- Game fish caught in the 2025 survey
- bluegill 1,384, largemouth bass 234, smallmouth bass 62, black crappie 59, pumpkinseed 31, yellow perch 27, rock bass 13
- Fish species recorded
- black crappie, bluegill, brook trout, brown trout, hybrid sunfish, lake trout, largemouth bass, northern pike, pumpkinseed, rainbow trout, rock bass, smallmouth bass, yellow perch, and 21 other species
- Stocked in 2025
- brook trout adults (977); brown trout fingerlings (350); brown trout yearlings (2,150); lake trout fingerlings (4,369); lake trout yearlings (5,250); rainbow trout adults (702); rainbow trout yearlings (9,000)
- Stocked in 2024
- brown trout yearlings (2,500); rainbow trout adults (112); rainbow trout yearlings (9,000); splake fingerlings (10,454)
- Stocked in 2023
- brown trout yearlings (1,637); brown trout fingerlings (953); lake trout yearlings (6,000); lake trout adults (87); rainbow trout adults (30); rainbow trout yearlings (9,000)
- Stocking years on record
- 10 of the last 10 (2016 to 2025)
- Grindstone Lake Public Water Access Site
- trailer launch, concrete slab ramp, 1 dock, 10 trailer spaces, toilet, run by DNR Division of Parks and Trails
- Eating advice, general populations
- rainbow smelt: all sizes - 2 servings/week
- Size
- 500 to 1,999 acres
- Deepest point
- 60 feet or more
- Public access
- Yes
- Stocked in the last 3 years
- Yes
- Lake-specific eating advice
- Yes
Sources
- Minnesota DNR LakeFinder
Checked September 24, 2026 - Minnesota DNR Public Water Access Sites
Checked September 24, 2026 - Minnesota Department of Health fish consumption guidelines
Checked September 24, 2026
Survey catches show what DNR nets and electrofishing found on the survey date, not how the fishing is today. Check the current regulations and the Department of Health advice before you keep fish, and confirm access conditions before you tow a boat.