---
type: lake
name: "Grindstone Lake"
county: "Pine"
nearest_town: "Sandstone"
lake_type: "lake"
acres: 533
max_depth_ft: 153
latitude: 46.12237
longitude: -93.00747
lake_score: 66
dnr_lake_id: "58012300"
url: https://www.minnelakes.org/lakes/pine-county/grindstone-lake
---

# Grindstone Lake

Lake in Pine County, Minnesota, near Sandstone

- **Surface Area**: 533 acres
- **Max Depth**: 153 ft
- **Average Depth**: 60 ft
- **Shoreline**: 5 miles
- **Water Clarity**: 10.7 ft
- **Lake Type**: lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 66/100 (composite of public data, not a visitor rating)

## About

Grindstone Lake is a 533-acre lake near Sandstone in Pine County, Minnesota. It reaches 153 feet at its deepest point, with an average depth of about 60 feet, and has roughly 5 miles of shoreline. DNR surveys put average water clarity at about 10.7 feet, clearer than most lakes in the state.

Minnesota DNR fisheries surveys list 21 fish species here, including northern pike, largemouth bass, smallmouth bass, black crappie, bluegill, and pumpkinseed. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2025.

There is one public boat launch (concrete surface) managed by the Minnesota DNR. Ice typically goes out around April 14, based on 23 years of DNR ice-out records.

## Access

- **Public access**: 1 public boat launch (concrete)
- **Managed by**: Minnesota DNR
- **Launch fee**: Free at DNR public water accesses

## Fishing

- **Species on DNR survey**: 21
- **Stocked**: Yes
- **Last DNR survey**: 2025
- **Special regulations**: No
- **Ice fishing**: Yes

## Activities

Fishing, Ice Fishing, Boating, Paddling

## Amenities

Boat Ramp

## Fish Species

Northern Pike, Largemouth Bass, Smallmouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, Lake Trout, Rainbow Trout, Brook Trout, Brown Trout, Rock Bass, Golden Redhorse, Greater Redhorse, Hybrid Sunfish, Rainbow Smelt, River Redhorse, Shorthead Redhorse, Silver Redhorse, White Sucker, Yellow Bullhead

## Ice-Out

- **Median ice-out**: April 14
- **Years of record**: 23
- **Earliest**: 2024-03-19
- **Latest**: 2018-05-09

## Nearby Lakes

- [Bass Lake](https://www.minnelakes.org/lakes/pine-county/bass-lake) - 3.1 miles, 228 acres
- [Grass Lake](https://www.minnelakes.org/lakes/pine-county/grass-lake) - 3.5 miles, 125 acres
- [Eleven Lake](https://www.minnelakes.org/lakes/kanabec-county/eleven-lake) - 3.9 miles, 315 acres
- [Upper Pine Lake](https://www.minnelakes.org/lakes/pine-county/upper-pine-lake) - 4.6 miles, 233 acres
- [Pine Lake](https://www.minnelakes.org/lakes/aitkin-county/pine-lake) - 5.5 miles, 378 acres
- [Fish Lake](https://www.minnelakes.org/lakes/pine-county/fish-lake) - 6 miles, 185 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=46.12237,-93.00747)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=58012300)
- [All lakes in Pine County](https://www.minnelakes.org/lakes/pine-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/pine-county/grindstone-lake)*