Grindstone

Pine County, Minnesota — DOW #58012300

208 Surveys

532.91

Acres

153 ft

Max Depth

60 ft

Mean Depth

21

Fish Species

1

Local Guides

DNR Fish Surveys

Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Grindstone. Green = above normal range. Red = below normal.

RBS

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
2022-05-02	1/4-in trap nets	4.0	—	0.03 lb	4
2022-05-02	Standard trap nets	2.7	—	0.02 lb	24
1997-08-04	Standard gill nets	1.8	—	0.09 lb	48
2022-08-15	Special gill nets	0.5	—	0.03 lb	3
2022-08-15	fine mesh forage gill net	50.3	—	0.01 lb	804
1980-08-11	Standard gill nets	0.5	—	0.08 lb	13
1987-08-10	Standard gill nets	1.9	—	0.08 lb	50
2012-07-30	Standard gill nets	3.0	—	0.11 lb	73
2020-08-05	Standard gill nets	1.7	—	0.09 lb	31
2024-07-30	fine mesh forage gill net	31.5	—	0.03 lb	441
2002-08-13	Standard gill nets	3.2	—	0.12 lb	86
1992-08-03	Standard gill nets	2.8	—	0.11 lb	76

Bluegill

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	0.1	—	0.13 lb	3
1997-08-04	Survey seining	27.3	—	—	82
1997-08-04	Standard trap nets	7.4 (below normal)	7.7 – 43.4	0.13 lb	67
1980-08-11	Standard gill nets	0.0	—	0.10 lb	1
1980-08-11	Standard trap nets	9.8 (normal)	7.7 – 43.4	0.14 lb	59
1987-08-10	Standard gill nets	0.1	—	0.30 lb	2
1987-08-10	Standard trap nets	14.0 (normal)	7.7 – 43.4	0.13 lb	84
2012-07-30	Standard gill nets	0.3	—	0.10 lb	8
2012-07-30	Backpack electrofishing	19.5	—	—	21
2012-07-30	Standard trap nets	28.4 (normal)	7.7 – 43.4	0.15 lb	256
2012-07-30	50-ft beach seine	19.0	—	—	209
2012-07-30	15-ft beach seine	8.0	—	—	8
2002-08-13	Survey seining	20.7	—	—	62
2002-08-13	Standard gill nets	0.8	—	0.20 lb	21
2002-08-13	Standard trap nets	11.0 (normal)	7.7 – 43.4	0.08 lb	99
1992-08-03	Standard gill nets	0.0	—	0.10 lb	1
1992-08-03	Standard trap nets	6.0 (below normal)	7.7 – 43.4	0.03 lb	36

White Sucker

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Survey seining	0.7	—	—	2
1997-08-04	Standard trap nets	0.6 (normal)	0.2 – 0.7	1.19 lb	5
1997-08-04	Standard gill nets	0.3 (below normal)	0.5 – 2.0	2.09 lb	9
2022-08-15	Special gill nets	0.2	—	0.67 lb	1
1980-08-11	Standard gill nets	0.6 (normal)	0.5 – 2.0	1.82 lb	15
1980-08-11	Standard trap nets	2.3 (above normal)	0.2 – 0.7	1.21 lb	14
1987-08-10	Standard gill nets	0.5 (below normal)	0.5 – 2.0	1.90 lb	13
1987-08-10	Standard trap nets	0.3 (normal)	0.2 – 0.7	1.80 lb	2
2012-07-30	Standard trap nets	0.1 (below normal)	0.2 – 0.7	2.20 lb	1
2012-07-30	Standard gill nets	0.1 (below normal)	0.5 – 2.0	1.91 lb	3
2020-08-05	Standard gill nets	0.2 (below normal)	0.5 – 2.0	2.77 lb	3
2002-08-13	Standard gill nets	0.3 (below normal)	0.5 – 2.0	2.20 lb	9
2002-08-13	Standard trap nets	0.6 (normal)	0.2 – 0.7	0.37 lb	5
1992-08-03	Standard gill nets	0.5 (below normal)	0.5 – 2.0	1.71 lb	13
1992-08-03	Standard trap nets	0.5 (normal)	0.2 – 0.7	1.87 lb	3

Black Crappie

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	0.0 (below normal)	0.3 – 1.7	0.67 lb	1
1997-08-04	Survey seining	4.7	—	—	14
1997-08-04	Standard trap nets	0.9 (normal)	0.5 – 2.2	0.24 lb	8
1980-08-11	Standard gill nets	0.4 (normal)	0.3 – 1.7	0.05 lb	10
1980-08-11	Standard trap nets	2.2 (normal)	0.5 – 2.2	0.26 lb	13
1987-08-10	Standard gill nets	0.4 (normal)	0.3 – 1.7	0.40 lb	10
1987-08-10	Standard trap nets	5.3 (above normal)	0.5 – 2.2	0.29 lb	32
2012-07-30	Standard gill nets	0.2 (below normal)	0.3 – 1.7	0.12 lb	4
2012-07-30	Standard trap nets	2.6 (above normal)	0.5 – 2.2	0.36 lb	23
2024-07-30	fine mesh forage gill net	0.1	—	—	1
2002-08-13	Standard gill nets	0.5 (normal)	0.3 – 1.7	0.32 lb	14
2002-08-13	Standard trap nets	4.4 (above normal)	0.5 – 2.2	0.19 lb	40
1992-08-03	Standard trap nets	0.3 (below normal)	0.5 – 2.2	0.10 lb	2

CRC

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	5.3	—	16

BNT

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	0.4	—	1.47 lb	12
2022-08-15	Special gill nets	0.5	—	1.26 lb	3
1980-08-11	Standard gill nets	0.3	—	1.96 lb	8
1987-08-10	Standard gill nets	0.5	—	1.18 lb	13
2012-07-30	Standard gill nets	0.4	—	1.08 lb	9
2012-07-30	50-ft beach seine	0.1	—	—	1
2020-08-05	Open-water angling	2.0	—	1.53 lb	2
2020-08-05	Standard gill nets	0.1	—	0.91 lb	1
1992-08-03	Standard gill nets	0.7	—	1.34 lb	19

Rainbow Trout

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	1.4	—	0.62 lb	38
1980-08-11	Standard gill nets	0.7	—	0.64 lb	19
2012-07-30	Standard gill nets	0.0	—	2.20 lb	1
2012-07-30	Standard electrofishing	4.8	—	0.45 lb	6
2020-08-05	Open-water angling	1.0	—	0.82 lb	1
2002-08-13	Standard gill nets	0.4	—	0.54 lb	12
1992-08-03	Standard gill nets	0.7	—	0.88 lb	19

Lake Trout

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	2.8 (above normal)	0.2 – 1.7	1.03 lb	76
2022-08-15	Special gill nets	0.3	—	2.58 lb	2
2022-08-15	fine mesh forage gill net	0.6	—	4.88 lb	10
1980-08-11	Standard gill nets	0.6 (normal)	0.2 – 1.7	0.71 lb	15
1987-08-10	Standard gill nets	0.1 (below normal)	0.2 – 1.7	2.57 lb	3
2012-07-30	Standard gill nets	2.0 (above normal)	0.2 – 1.7	1.75 lb	48
2020-08-05	Standard gill nets	1.2 (normal)	0.2 – 1.7	1.12 lb	22
2024-07-30	fine mesh forage gill net	0.9	—	5.42 lb	12
2002-08-13	Standard gill nets	12.4 (above normal)	0.2 – 1.7	0.75 lb	336
1992-08-03	Standard gill nets	0.2 (below normal)	0.2 – 1.7	5.82 lb	5

GLR

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	0.1	—	2.05 lb	2
1997-08-04	Standard trap nets	1.1	—	1.56 lb	10
1987-08-10	Standard gill nets	0.1	—	1.87 lb	3
1987-08-10	Standard trap nets	1.0	—	3.92 lb	6
2002-08-13	Standard gill nets	0.1	—	2.51 lb	3
1992-08-03	Standard gill nets	0.0	—	1.20 lb	1

Smallmouth Bass

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard electrofishing	27.2	—	0.31 lb	33
1997-08-04	Standard gill nets	0.1 (below normal)	0.2 – 1.6	0.37 lb	2
1997-08-04	Survey seining	0.3	—	—	1
1980-08-11	Standard gill nets	0.2 (below normal)	0.2 – 1.6	0.74 lb	5
1987-08-10	Standard gill nets	0.1 (below normal)	0.2 – 1.6	0.83 lb	3
2012-07-30	Backpack electrofishing	1.9	—	—	2
2012-07-30	Standard trap nets	0.4 (normal)	0.2 – 0.8	0.13 lb	4
2012-07-30	50-ft beach seine	0.1	—	—	1
2012-07-30	Standard electrofishing	39.6	—	0.37 lb	50
2012-07-30	15-ft beach seine	1.0	—	—	1
2012-07-30	Standard gill nets	0.2 (below normal)	0.2 – 1.6	1.52 lb	4
2020-08-05	Standard gill nets	0.1 (below normal)	0.2 – 1.6	1.58 lb	1
2020-08-05	Open-water angling	4.0	—	1.77 lb	4
2024-07-30	fine mesh forage gill net	0.2	—	0.10 lb	3
2002-08-13	Standard electrofishing	8.8	—	1.06 lb	13
2002-08-13	Survey seining	4.0	—	—	12
2002-08-13	Standard gill nets	0.1 (below normal)	0.2 – 1.6	2.07 lb	2
1992-08-03	Standard gill nets	0.1 (below normal)	0.2 – 1.6	0.38 lb	4

Pumpkinseed

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard trap nets	0.3 (below normal)	1.4 – 5.9	0.13 lb	3
1980-08-11	Standard trap nets	0.7 (below normal)	1.4 – 5.9	0.23 lb	4
1987-08-10	Standard gill nets	0.1	—	0.17 lb	3
1987-08-10	Standard trap nets	3.3 (normal)	1.4 – 5.9	0.11 lb	20
2012-07-30	Standard trap nets	0.9 (below normal)	1.4 – 5.9	0.08 lb	8
2012-07-30	50-ft beach seine	0.3	—	—	3
2002-08-13	Standard trap nets	3.3 (normal)	1.4 – 5.9	0.05 lb	30
1992-08-03	Standard trap nets	2.5 (normal)	1.4 – 5.9	0.05 lb	15

Iowa Darter

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	2.3	—	7
2012-07-30	Backpack electrofishing	8.3	—	9
2012-07-30	50-ft beach seine	0.5	—	5

Bluntnose Minnow

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	6.0	—	18
2012-07-30	Backpack electrofishing	26.9	—	29
2012-07-30	50-ft beach seine	0.9	—	10

SHI

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	83.3	—	250

Golden Shiner

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	36.7	—	110

Rock Bass

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	0.6 (below normal)	0.7 – 4.4	0.19 lb	17
1997-08-04	Survey seining	0.3	—	—	1
1997-08-04	Standard trap nets	2.8 (normal)	0.8 – 3.7	0.12 lb	25
1980-08-11	Standard gill nets	1.0 (normal)	0.7 – 4.4	0.14 lb	27
1980-08-11	Standard trap nets	8.3 (above normal)	0.8 – 3.7	0.12 lb	50
1987-08-10	Standard gill nets	0.6 (below normal)	0.7 – 4.4	0.17 lb	15
1987-08-10	Standard trap nets	6.5 (above normal)	0.8 – 3.7	0.12 lb	39
2012-07-30	Standard gill nets	0.3 (below normal)	0.7 – 4.4	0.10 lb	6
2012-07-30	Backpack electrofishing	1.9	—	—	2
2012-07-30	Standard trap nets	2.6 (normal)	0.8 – 3.7	0.16 lb	23
2002-08-13	Survey seining	2.7	—	—	8
2002-08-13	Standard gill nets	1.1 (normal)	0.7 – 4.4	0.14 lb	29
2002-08-13	Standard trap nets	1.1 (normal)	0.8 – 3.7	0.10 lb	10
1992-08-03	Standard gill nets	0.4 (below normal)	0.7 – 4.4	0.15 lb	10
1992-08-03	Standard trap nets	3.2 (normal)	0.8 – 3.7	0.14 lb	19

Northern Pike

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Standard gill nets	1.8 (below normal)	2.2 – 8.7	4.42 lb	48
1997-08-04	Survey seining	0.3	—	—	1
1997-08-04	Standard trap nets	0.1	—	0.39 lb	1
2022-08-15	Special gill nets	1.2	—	2.91 lb	7
1980-08-11	Standard gill nets	2.2 (normal)	2.2 – 8.7	2.26 lb	60
1980-08-11	Standard trap nets	0.2	—	0.40 lb	1
1987-08-10	Standard gill nets	1.4 (below normal)	2.2 – 8.7	3.35 lb	38
1987-08-10	Standard trap nets	0.2	—	0.30 lb	1
2012-07-30	Standard gill nets	0.8 (below normal)	2.2 – 8.7	4.35 lb	18
2012-07-30	Standard trap nets	0.2	—	1.14 lb	2
2020-08-05	Standard gill nets	0.8 (below normal)	2.2 – 8.7	3.01 lb	14
2020-08-05	Open-water angling	1.0	—	2.59 lb	1
2024-07-30	fine mesh forage gill net	0.1	—	2.24 lb	1
2002-08-13	Standard gill nets	1.0 (below normal)	2.2 – 8.7	4.61 lb	27
2002-08-13	Standard trap nets	0.1	—	0.88 lb	1
1992-08-03	Standard gill nets	1.0 (below normal)	2.2 – 8.7	4.17 lb	27
1992-08-03	Standard trap nets	0.2	—	10.10 lb	1

Johnny Darter

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	8.3	—	25
2012-07-30	50-ft beach seine	0.9	—	10
2012-07-30	Backpack electrofishing	22.2	—	24

Yellow Perch

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Survey seining	10.7	—	—	32
2022-08-15	fine mesh forage gill net	0.1	—	0.04 lb	1
1980-08-11	Standard trap nets	0.3 (below normal)	0.4 – 2.3	0.15 lb	2
1980-08-11	Standard gill nets	0.1 (below normal)	1.5 – 13.8	0.13 lb	3
1987-08-10	Standard gill nets	2.0 (normal)	1.5 – 13.8	0.09 lb	55
2012-07-30	Standard gill nets	0.8 (below normal)	1.5 – 13.8	0.08 lb	19
2020-08-05	Standard gill nets	0.1 (below normal)	1.5 – 13.8	0.09 lb	1
2024-07-30	fine mesh forage gill net	0.8	—	—	11
2002-08-13	Standard trap nets	1.7 (normal)	0.4 – 2.3	0.10 lb	15
2002-08-13	Survey seining	0.3	—	—	1
2002-08-13	Standard gill nets	4.1 (normal)	1.5 – 13.8	0.06 lb	111
1992-08-03	Standard trap nets	0.7 (normal)	0.4 – 2.3	0.05 lb	4
1992-08-03	Standard gill nets	1.4 (below normal)	1.5 – 13.8	0.10 lb	38

Largemouth Bass

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Survey seining	2.7	—	—	8
2012-07-30	50-ft beach seine	0.1	—	—	1
2012-07-30	Standard electrofishing	4.8	—	1.34 lb	6
2012-07-30	Standard trap nets	0.1 (below normal)	0.4 – 1.5	0.20 lb	1
2024-07-30	fine mesh forage gill net	0.1	—	—	2

Common Shiner

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1997-08-04	Survey seining	10.0	—	—	30
1997-08-04	Standard trap nets	0.2	—	0.08 lb	2
1980-08-11	Standard trap nets	0.2	—	0.10 lb	1
2024-07-30	fine mesh forage gill net	0.3	—	0.04 lb	4

Spottail Shiner

Date	Gear	CPUE	Normal Range	Total Catch
1997-08-04	Survey seining	13.3	—	40
2024-07-30	fine mesh forage gill net	0.1	—	2

Black Bullhead

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1980-08-11	Standard trap nets	10.3 (above normal)	0.3 – 1.7	0.15 lb	62
1980-08-11	Standard gill nets	0.2 (below normal)	0.3 – 1.9	0.34 lb	5
1987-08-10	Standard trap nets	4.7 (above normal)	0.3 – 1.7	0.27 lb	28
1987-08-10	Standard gill nets	0.5 (normal)	0.3 – 1.9	0.27 lb	13
2012-07-30	Backpack electrofishing	0.9	—	—	1
2002-08-13	Standard gill nets	0.0 (below normal)	0.3 – 1.9	0.39 lb	1
1992-08-03	Standard trap nets	0.3 (normal)	0.3 – 1.7	0.15 lb	2

Shorthead Redhorse

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1980-08-11	Standard gill nets	0.3 (normal)	0.2 – 1.5	1.41 lb	9
1980-08-11	Standard trap nets	0.7 (normal)	0.4 – 1.4	2.17 lb	4
2002-08-13	Standard gill nets	0.2 (below normal)	0.2 – 1.5	1.62 lb	5

Tullibee (Cisco)

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1980-08-11	Standard gill nets	0.3 (below normal)	1.3 – 10.4	0.46 lb	8
1987-08-10	Standard gill nets	0.0 (below normal)	1.3 – 10.4	0.20 lb	1
1992-08-03	Standard gill nets	0.1 (below normal)	1.3 – 10.4	0.40 lb	2

Brown Bullhead

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1987-08-10	Standard trap nets	0.5 (normal)	0.3 – 1.0	0.60 lb	3
1992-08-03	Standard trap nets	0.3 (normal)	0.3 – 1.0	0.25 lb	2
1992-08-03	Standard gill nets	0.0 (below normal)	0.3 – 1.8	0.20 lb	1

Yellow Bullhead

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
1987-08-10	Standard trap nets	0.2 (below normal)	1.0 – 5.3	0.50 lb	1
2012-07-30	Standard gill nets	0.0 (below normal)	1.0 – 6.0	1.57 lb	1

Hybrid Sunfish

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
2012-07-30	Standard trap nets	0.1	—	0.08 lb	1

CNM

Date	Gear	CPUE	Normal Range	Total Catch
2012-07-30	Backpack electrofishing	1.9	—	2
2012-07-30	50-ft beach seine	0.1	—	1

GRR

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
2012-07-30	Standard trap nets	0.7	—	4.06 lb	6
1992-08-03	Standard trap nets	0.2	—	4.00 lb	1

RRH

Date	Gear	CPUE	Normal Range	Avg Weight	Total Catch
2002-08-13	Standard gill nets	0.1	—	2.47 lb	2
2002-08-13	Standard trap nets	1.7	—	2.04 lb	15

Depth Maps & Lake Info

View on MN DNR LakeFinder

Map & Directions

Showing 14 nearby bait & tackle shops on the map.

Nearby Bait & Tackle

Nearby Marinas

Across the Lake Services

Pine City, MN

★ 5

Custom Portable Docks & Lifts

Hinckley, MN

★ 5

DAKA Corporation

Pine City, MN

★ 5

Dave's Dock & Lift LLC

Grasston, MN

★ 5

Dryland Marina

Hinckley, MN

Fishing Dock

Pine City, MN

Resorts & Lodges Near Grindstone

Plan your stay — fishing resorts and lodges near Grindstone.

Fishing Resort Pine City

(651) 261-1906

Pokegama Lake Cabin

Fishing Resort Pine City

Sweetbriar Ridge

Fishing Resort Pine City

(218) 329-7409

Woodland Trails Lodge and Cabin

Fishing Resort Hinckley

(612) 590-7330

View all 888 Minnesota resorts →

Fish Species

Species known to inhabit Grindstone. Click any species for a full fishing guide.

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

Fishing Guides Near Grindstone

Nyquist Outdoors

(320) 224-8295

Other Lakes in Pine County

Bass

Big Pine

Big Slough

Close

Cross

Dago

Plan Your Trip to Grindstone

Weather forecast for Grindstone — check wind, rain, and temperature before you go
GPS: 46.1220°N, 93.0076°W — Get Directions
View on MN DNR LakeFinder for the latest survey data and lake info
Review Minnesota fishing regulations for season dates and limits
A Minnesota fishing license is required for ages 16+ — buy online at dnr.state.mn.us

Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026. Learn how we maintain this data.