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Pine County

Grindstone Lake

The Minnesota DNR reports 22,798 trout stocked in Grindstone Lake (Pine County) in 2025, the latest year in its lake stocking report. The DNR reports stocking by year, not by day. Minnesota DNR lists it as “Grindstone”.

Minnesota DNR data pulled .

A lake
Photo: ericdeluca, Pixabay License, Pixabay

Grindstone Lake in numbers

trout stocked in 2025
22,798
yearly average, 2020–2024
16,417
years stocked since 2020
6
Stocking log

Every stocking record

Every trout stocking the DNR reports for this lake, by year, species and size class (fry, fingerlings, yearlings, adults), newest first.

Stocked in 202522,7989,702 rainbow trout; 9,619 lake trout; 2,500 brown trout; 977 brook trout
Every year since 2020
YearSpeciesSizeFish
2025Brook troutadultsadults977
2025Brown troutfingerlingsfingerlings350
2025Brown troutyearlingsyearlings2,150
2025Lake troutyearlingsyearlings5,250
2025Lake troutfingerlingsfingerlings4,369
2025Rainbow troutadultsadults702
2025Rainbow troutyearlingsyearlings9,000
2024Brown troutyearlingsyearlings2,500
2024Rainbow troutadultsadults112
2024Rainbow troutyearlingsyearlings9,000
2024Splakefingerlingsfingerlings10,454
2023Brown troutyearlingsyearlings1,637
2023Brown troutfingerlingsfingerlings953
2023Lake troutyearlingsyearlings6,000
2023Lake troutadultsadults87
2023Rainbow troutyearlingsyearlings9,000
2023Rainbow troutadultsadults30
2022Brown troutyearlingsyearlings2,500
2022Rainbow troutyearlingsyearlings12,000
2022Rainbow troutadultsadults47
2021Brown troutyearlingsyearlings2,500
2021Brown troutadultsadults515
2021Lake troutadultsadults472
2021Lake troutyearlingsyearlings6,548
2021Rainbow troutyearlingsyearlings6,000
2020Brown troutadultsadults2,200
2020Brown troutfingerlingsfingerlings300
2020Rainbow troutadultsadults232
2020Rainbow troutyearlingsyearlings9,000
2020 – 2025

Trout stocked each year

Shown from 2020 to 2025, the latest year the DNR has published. The tallest year is yellow.

  1. 12k2020: 11,732 fish
  2. 16k2021: 16,035 fish
  3. 15k2022: 14,547 fish
  4. 18k2023: 17,707 fish
  5. 22k2024: 22,066 fish
  6. 23k2025: 22,798 fish

What is stocked here

All records since 2020
SpeciesFishShare
Rainbow trout55,12353%
Lake trout22,72622%
Brown trout15,60515%
Splake10,45410%
Brook trout9771%

Where it is

Minnesota trout stockingAll Pine County waters

Open on a map

Map point 46.1220, -93.0075: the USGS Geographic Names Information System point for this lake (feature 644486). It marks the water, not a parking lot or a boat launch.

Closest waters on this site

Straight-line distance between map points, not driving distance.

Also in Pine County: Crooked Creek, Hay Creek.

Source: DNR lake stocking report, Minnesota Department of Natural Resources. Pulled . Check the agency and the current fishing rules before you go.

Near Grindstone Lake

Boat access, bait shops, rentals and places to stay within 10 miles. Distances are straight lines from the map point of the water, not driving distance.

Bait and tackle7.0miBoat rental6.8miCampground6.3miLodging4.8mi

Bait and tackle

nearest 2

Boats, kayaks and marinas

nearest 2

Campgrounds and RV parks

nearest 2

Lodging

nearest 3
Compare stays nearbyPartner link (Stay22: Booking.com, Expedia, Vrbo and others). We may earn a commission if you book; the price is the same.

Businesses: Overture Maps Foundation open places data (release 2026-10-21.0, pulled 2026-11-06), from the businesses’ public listings. We have not visited them and do not rank them. Hours and services change, so call ahead.