Grassy
St. Louis County, Minnesota — DOW #69008200
56 Surveys
256.68
Acres
15 ft
Max Depth
6
Fish Species
33
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Grassy. Green = above normal range. Red = below normal.
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard gill nets | 3.3 (normal) | 2.0 – 6.3 | 1.83 lb | 10 |
| 1985-07-10 | Standard trap nets | 1.0 | — | 1.93 lb | 4 |
| 2007-06-11 | Standard gill nets | 4.5 (normal) | 2.0 – 6.3 | 2.50 lb | 27 |
| 2007-06-11 | 1/4-in trap nets | 0.5 | — | — | 2 |
| 2007-06-11 | Standard trap nets | 1.6 | — | 2.76 lb | 14 |
| 1975-08-24 | Standard gill nets | 2.7 (normal) | 2.0 – 6.3 | 1.81 lb | 8 |
| 1975-08-24 | Standard trap nets | 1.8 | — | 5.50 lb | 7 |
| 1997-07-21 | Standard gill nets | 5.7 (normal) | 2.0 – 6.3 | 1.68 lb | 34 |
| 1997-07-21 | Standard trap nets | 1.2 | — | 1.60 lb | 11 |
| 2019-07-15 | Standard gill nets | 5.5 (normal) | 2.0 – 6.3 | 2.60 lb | 33 |
| 2019-07-15 | Standard trap nets | 1.9 | — | 2.60 lb | 17 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard gill nets | 0.3 (below normal) | 0.7 – 2.5 | 0.30 lb | 1 |
| 1985-07-10 | Standard trap nets | 2.3 (normal) | 1.0 – 7.8 | 0.40 lb | 9 |
| 2007-06-11 | Standard gill nets | 0.8 (normal) | 0.7 – 2.5 | 0.06 lb | 5 |
| 2007-06-11 | 1/4-in trap nets | 1.5 | — | — | 6 |
| 2007-06-11 | Standard trap nets | 2.1 (normal) | 1.0 – 7.8 | 0.46 lb | 19 |
| 1975-08-24 | Standard gill nets | 2.0 (normal) | 0.7 – 2.5 | 0.42 lb | 6 |
| 1975-08-24 | Standard trap nets | 0.8 (below normal) | 1.0 – 7.8 | 0.50 lb | 3 |
| 1997-07-21 | Standard gill nets | 3.2 (above normal) | 0.7 – 2.5 | 0.36 lb | 19 |
| 1997-07-21 | Standard trap nets | 7.4 (normal) | 1.0 – 7.8 | 0.33 lb | 67 |
| 2019-07-15 | Standard gill nets | 1.5 (normal) | 0.7 – 2.5 | 0.37 lb | 9 |
| 2019-07-15 | Standard trap nets | 3.9 (normal) | 1.0 – 7.8 | 0.30 lb | 35 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard gill nets | 0.3 (below normal) | 3.6 – 14.1 | 2.00 lb | 1 |
| 1975-08-24 | Standard gill nets | 0.3 (below normal) | 3.6 – 14.1 | 2.50 lb | 1 |
| 1997-07-21 | Standard gill nets | 0.2 (below normal) | 3.6 – 14.1 | 4.17 lb | 1 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard trap nets | 15.8 (above normal) | 0.3 – 6.4 | 0.28 lb | 63 |
| 1985-07-10 | Standard gill nets | 0.3 | — | 0.50 lb | 1 |
| 2007-06-11 | 1/4-in trap nets | 10.3 | — | — | 41 |
| 2007-06-11 | Standard trap nets | 16.0 (above normal) | 0.3 – 6.4 | 0.38 lb | 144 |
| 1975-08-24 | Standard trap nets | 10.8 (above normal) | 0.3 – 6.4 | 0.29 lb | 43 |
| 1975-08-24 | Standard gill nets | 1.3 | — | 0.57 lb | 4 |
| 1997-07-21 | Standard trap nets | 10.0 (above normal) | 0.3 – 6.4 | 0.38 lb | 90 |
| 1997-07-21 | Standard gill nets | 0.7 | — | 0.59 lb | 4 |
| 2019-07-15 | Standard trap nets | 25.6 (above normal) | 0.3 – 6.4 | 0.21 lb | 230 |
| 2019-07-15 | Standard gill nets | 2.8 | — | 0.41 lb | 17 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard trap nets | 0.3 (below normal) | 0.4 – 2.6 | 0.20 lb | 1 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-10 | Standard gill nets | 3.3 (normal) | 2.2 – 14.6 | 0.06 lb | 10 |
| 2007-06-11 | Standard gill nets | 1.2 (below normal) | 2.2 – 14.6 | 0.11 lb | 7 |
| 1975-08-24 | Standard trap nets | 0.3 (below normal) | 0.4 – 2.1 | 0.10 lb | 1 |
| 1975-08-24 | Standard gill nets | 2.0 (below normal) | 2.2 – 14.6 | 0.20 lb | 6 |
| 1997-07-21 | Standard trap nets | 0.4 (normal) | 0.4 – 2.1 | 0.09 lb | 4 |
| 1997-07-21 | Standard gill nets | 6.5 (normal) | 2.2 – 14.6 | 0.09 lb | 39 |
| 2019-07-15 | Standard trap nets | 0.6 (normal) | 0.4 – 2.1 | 0.15 lb | 5 |
| 2019-07-15 | Standard gill nets | 0.8 (below normal) | 2.2 – 14.6 | 0.08 lb | 5 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2007-06-11 | 1/4-in trap nets | 1.0 | — | — | 4 |
| 2007-06-11 | Standard trap nets | 0.8 (normal) | 0.1 – 1.5 | 2.17 lb | 7 |
| 1975-08-24 | Standard trap nets | 1.5 (normal) | 0.1 – 1.5 | 1.67 lb | 6 |
| 1975-08-24 | Standard gill nets | 0.3 (normal) | 0.3 – 1.9 | 1.50 lb | 1 |
| 1997-07-21 | Standard trap nets | 4.3 (above normal) | 0.1 – 1.5 | 0.71 lb | 39 |
| 1997-07-21 | Standard gill nets | 0.2 (below normal) | 0.3 – 1.9 | 0.09 lb | 1 |
| 2019-07-15 | Standard trap nets | 0.3 (normal) | 0.1 – 1.5 | 2.58 lb | 3 |
| 2019-07-15 | Standard gill nets | 0.5 (normal) | 0.3 – 1.9 | 1.47 lb | 3 |
Smallmouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1975-08-24 | Standard gill nets | 0.3 (below normal) | 0.5 – 5.8 | 0.20 lb | 1 |
| 1997-07-21 | Standard trap nets | 0.2 (below normal) | 0.3 – 2.8 | 0.77 lb | 2 |
| 2019-07-15 | Standard gill nets | 1.5 (normal) | 0.5 – 5.8 | 2.35 lb | 9 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1997-07-21 | Standard gill nets | 0.3 | — | 0.14 lb | 2 |
Depth Maps & Lake Info
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Nearby Marinas
Resorts & Lodges Near Grassy
Plan your stay — fishing resorts and lodges near Grassy.
Fish Species
Species known to inhabit Grassy. Click any species for a full fishing guide.
Fishing Guides Near Grassy
Other Lakes in St. Louis County
Plan Your Trip to Grassy
- Weather forecast for Grassy — check wind, rain, and temperature before you go
- GPS: 48.0005°N, 91.8610°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.