Northern pike lake, Crappie lake, Sunfish lake
Grindstone Reservoir
Public access
Grindstone Reservoir is a 27-acre lake in Pine County, 11 feet at its deepest. The DNR last surveyed its fish in 1992. Recorded species include northern pike and crappie.
Details
- DNR lake ID
- 58012100
- County
- Pine
- Surface area
- 27 acres
- Maximum depth
- 11 feet
- Shallow water (littoral) area
- 27 acres, 100% of the lake
- Shoreline
- 2.7 miles
- Latest DNR fish survey
- May 1992, population assessment
- Surveys on record
- 2, since 1989
- Game fish caught in the 1992 survey
- pumpkinseed 18, bluegill 13, northern pike 4, rock bass 3, black crappie 2
- Fish species recorded
- black crappie, bluegill, northern pike, pumpkinseed, rock bass, and 7 other species
- Grindstone Reservoir Public Water Access Site
- trailer launch, natural ramp, 6 trailer spaces, run by DNR Division of Parks and Trails
- Fish consumption
- Follow the statewide guidelines; fish from this lake have not been tested
- Size
- Under 100 acres
- Deepest point
- Under 15 feet
- Public access
- Yes
Sources
- Minnesota DNR LakeFinder
Checked September 24, 2026 - Minnesota DNR Public Water Access Sites
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.