Grindstone River - Grindstone Reservoir
Pine County, Minnesota — DOW #58012100
21 Surveys
26.67
Acres
11 ft
Max Depth
12
Fish Species
1
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Grindstone River - Grindstone Reservoir. Green = above normal range. Red = below normal.
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 2.2 | — | 0.10 lb | 13 |
| 1989-05-01 | Standard trap nets | 1.3 | — | — | 8 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.5 | — | 0.17 lb | 3 |
| 1989-05-01 | Standard trap nets | 1.2 | — | — | 7 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.7 | — | 0.65 lb | 4 |
| 1989-05-01 | Standard trap nets | 2.8 | — | — | 17 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.3 | — | 0.40 lb | 2 |
| 1989-05-01 | Standard trap nets | 2.5 | — | — | 15 |
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 1.5 | — | 0.10 lb | 9 |
| 1989-05-01 | Standard trap nets | 71.8 | — | — | 431 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.2 | — | 1.20 lb | 1 |
| 1989-05-01 | Standard trap nets | 0.2 | — | — | 1 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 3.0 | — | 0.04 lb | 18 |
| 1989-05-01 | Standard trap nets | 0.7 | — | — | 4 |
GLR
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.2 | — | 2.00 lb | 1 |
Shorthead Redhorse
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 0.2 | — | 0.10 lb | 1 |
| 1989-05-01 | Standard trap nets | 0.3 | — | — | 2 |
Yellow Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1992-05-28 | Standard trap nets | 1.2 | — | 0.37 lb | 7 |
| 1989-05-01 | Standard trap nets | 1.7 | — | — | 10 |
SLR
| Date | Gear | CPUE | Normal Range | Total Catch |
|---|---|---|---|---|
| 1989-05-01 | Standard trap nets | 0.2 | — | 1 |
Common Carp
| Date | Gear | CPUE | Normal Range | Total Catch |
|---|---|---|---|---|
| 1989-05-01 | Standard trap nets | 0.2 | — | 1 |
Depth Maps & Lake Info
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Adrenaline Archery and Bait
Pine City, MN
★ 4.8County Line Quick Stop
Hinckley, MN
★ 4.8Lee's Pro Shop
Pine City, MN
★ 4.8Petry's Bait
Finlayson, MN
★ 4.6R & S Hardware Home & More
Hinckley, MN
★ 4.765 Bait
Braham, MN
★ 4.5EC'S Corner Express
Cambridge, MN
★ 3.4Hughley Guide Services
Isle, MN
★ 4.6Nearby Marinas
Resorts & Lodges Near Grindstone River - Grindstone Reservoir
Plan your stay — fishing resorts and lodges near Grindstone River - Grindstone Reservoir.
Fish Species
Species known to inhabit Grindstone River - Grindstone Reservoir. Click any species for a full fishing guide.
Fishing Guides Near Grindstone River - Grindstone Reservoir
Other Lakes in Pine County
Plan Your Trip to Grindstone River - Grindstone Reservoir
- Weather forecast for Grindstone River - Grindstone Reservoir — check wind, rain, and temperature before you go
- GPS: 46.0228°N, 92.9477°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.