Thirty
Itasca County, Minnesota — DOW #31014500
22 Surveys
120.68
Acres
14 ft
Max Depth
8
Fish Species
9
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Thirty. Green = above normal range. Red = below normal.
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 5.3 (normal) | 2.8 – 10.0 | 3.60 lb | 21 |
| 1980-07-14 | Standard gill nets | 4.0 (normal) | 2.8 – 10.0 | 3.26 lb | 20 |
| 1980-07-14 | Standard trap nets | 0.3 | — | 0.65 lb | 1 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 7.3 (normal) | 1.5 – 7.5 | 0.41 lb | 29 |
| 1986-07-21 | Standard trap nets | 7.8 (normal) | 1.9 – 13.0 | 0.25 lb | 31 |
| 1980-07-14 | Standard gill nets | 5.0 (normal) | 1.5 – 7.5 | 0.34 lb | 25 |
| 1980-07-14 | Standard trap nets | 9.5 (normal) | 1.9 – 13.0 | 0.45 lb | 38 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 0.3 (below normal) | 1.0 – 5.8 | 3.80 lb | 1 |
| 1980-07-14 | Standard trap nets | 0.5 (normal) | 0.3 – 3.3 | 3.85 lb | 2 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard trap nets | 8.0 (normal) | 3.1 – 24.9 | 0.24 lb | 32 |
| 1986-07-21 | Standard gill nets | 8.0 | — | 0.27 lb | 32 |
| 1980-07-14 | Standard trap nets | 41.0 (above normal) | 3.1 – 24.9 | 0.27 lb | 164 |
| 1980-07-14 | Standard gill nets | 12.8 | — | 0.35 lb | 64 |
Golden Shiner
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 0.5 (normal) | 0.5 – 5.1 | 0.15 lb | 2 |
| 1986-07-21 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.9 | 0.20 lb | 1 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard trap nets | 0.8 (below normal) | 0.8 – 7.2 | 0.13 lb | 3 |
| 1980-07-14 | Standard trap nets | 3.8 (normal) | 0.8 – 7.2 | 0.35 lb | 15 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 6.5 (normal) | 2.5 – 23.3 | 0.12 lb | 26 |
| 1980-07-14 | Standard gill nets | 0.6 (below normal) | 2.5 – 23.3 | 0.13 lb | 3 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1986-07-21 | Standard gill nets | 1.5 (normal) | 0.9 – 4.3 | 1.65 lb | 6 |
| 1980-07-14 | Standard trap nets | 0.8 (normal) | 0.3 – 1.9 | 1.23 lb | 3 |
| 1980-07-14 | Standard gill nets | 1.2 (normal) | 0.9 – 4.3 | 1.33 lb | 6 |
Depth Maps & Lake Info
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Best Bet Waxworm Wholesale Bait & Breeder Kits
Deer River, MN
★ 5Bite Me Waxworms Wholesale Bait Shop
Deer River, MN
★ 3.7Diamond Custom Rods
Grand Rapids, MN
★ 5Fred's Live Bait & Tackle
Deer River, MN
★ 4.8Frontier Sports
Marcell, MN
★ 4.6Glen's Army & Navy Store
Grand Rapids, MN
★ 4.3God's Country Outfitters
Grand Rapids, MN
★ 4.4Hollywood Bait
Coleraine, MN
★ 4.5Nearby Marinas
Resorts & Lodges Near Thirty
Plan your stay — fishing resorts and lodges near Thirty.
Fish Species
Species known to inhabit Thirty. Click any species for a full fishing guide.
Fishing Guides Near Thirty
Other Lakes in Itasca County
Plan Your Trip to Thirty
- Weather forecast for Thirty — check wind, rain, and temperature before you go
- GPS: 47.4747°N, 93.3073°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.