O'Brien
Itasca County, Minnesota — DOW #31003200
31 Surveys
538.96
Acres
63 ft
Max Depth
10
Fish Species
9
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on O'Brien. Green = above normal range. Red = below normal.
Brown Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard gill nets | 0.2 | — | 1.50 lb | 1 |
| 1985-06-24 | Standard trap nets | 0.4 | — | 0.77 lb | 3 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard gill nets | 4.2 | — | 2.13 lb | 21 |
| 1985-06-24 | Standard trap nets | 0.3 | — | 2.15 lb | 2 |
| 2013-08-05 | Standard gill nets | 6.0 | — | 2.26 lb | 54 |
| 2013-08-05 | Standard trap nets | 0.3 | — | 1.42 lb | 3 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard gill nets | 0.2 | — | 0.70 lb | 1 |
| 1985-06-24 | Standard trap nets | 0.7 | — | 0.22 lb | 5 |
| 2013-08-05 | Standard gill nets | 0.8 | — | 0.21 lb | 7 |
| 2013-08-05 | Standard trap nets | 0.9 | — | 0.12 lb | 8 |
Bowfin
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 0.1 | — | 9.25 lb | 1 |
| 2013-08-05 | Standard trap nets | 0.3 | — | 6.22 lb | 3 |
| 2013-08-05 | Standard gill nets | 0.1 | — | 4.08 lb | 1 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 1.6 | — | 0.10 lb | 11 |
| 2013-08-05 | Standard trap nets | 3.0 | — | 0.08 lb | 27 |
| 2013-08-05 | Standard gill nets | 3.4 | — | 0.18 lb | 31 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 0.1 | — | 0.10 lb | 1 |
| 1985-06-24 | Standard gill nets | 1.6 | — | 0.21 lb | 8 |
| 2013-08-05 | Standard trap nets | 1.9 | — | 0.07 lb | 17 |
| 2013-08-05 | Standard gill nets | 3.0 | — | 0.12 lb | 27 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 0.1 | — | 0.10 lb | 1 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard gill nets | 0.2 | — | 8.50 lb | 1 |
| 2013-08-05 | Standard gill nets | 1.1 | — | 3.17 lb | 10 |
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 0.1 | — | 0.50 lb | 1 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-06-24 | Standard trap nets | 2.0 | — | 0.09 lb | 14 |
| 2013-08-05 | Standard trap nets | 0.4 | — | 0.05 lb | 4 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2013-08-05 | Standard trap nets | 0.1 | — | 0.38 lb | 1 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2013-08-05 | Standard trap nets | 0.4 | — | 1.37 lb | 4 |
| 2013-08-05 | Standard gill nets | 0.2 | — | 0.72 lb | 2 |
Yellow Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2013-08-05 | Standard gill nets | 0.4 | — | 0.99 lb | 4 |
| 2013-08-05 | Standard trap nets | 0.2 | — | 0.70 lb | 2 |
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 O'Brien
Plan your stay — fishing resorts and lodges near O'Brien.
Fish Species
Species known to inhabit O'Brien. Click any species for a full fishing guide.
Fishing Guides Near O'Brien
Other Lakes in Itasca County
Plan Your Trip to O'Brien
- Weather forecast for O'Brien — check wind, rain, and temperature before you go
- GPS: 47.3521°N, 93.1372°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.