Minnesota · DNR survey data
O'Brien Lake
O'Brien Lake covers 539 acres in Itasca County, running to 63 feet, last surveyed by the DNR in 2013. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.
DNR survey data
Fish species
WalleyeStocked · 2024Fair numbers1.1per gill net18"Typical27"Biggest
Lengths measured · 10 fish
Northern pikeFair numbers6per gill net21"Typical30"Biggest
Lengths measured · 56 fish
BluegillJust a few3per trap net5"Typical9"Biggest
Lengths measured · 58 fish
CrappieJust a few0.9per trap net6"Typical8"Biggest
Lengths measured · 15 fish
Yellow perchFair numbers3per gill net6"Typical9"Biggest
Lengths measured · 44 fish
No recent survey rating.
Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.
DNR stocking records
Stocking history
| Year | Species | Stocked |
|---|---|---|
| 2024 | Walleye | 100,000 fry |
Recent reports
O'Brien Lake fishing reports
Recent reports on O'Brien Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
Within 30 miles
Nearby lakes
- Ox Hide Lake · 123 ac · 3.6 mi
- Swan Lake · 2,456 ac · 4.9 mi
- Snowball Lake · 145 ac · 5 mi
- Big Sucker Lake · 259 ac · 6.3 mi
- Lower Panasa Lake · 248 ac · 6.6 mi
- Hart Lake · 328 ac · 6.7 mi
- Upper Panasa Lake · 148 ac · 6.8 mi
- Big McCarthy Lake · 105 ac · 7.1 mi
Quick answers
Frequently asked questions
Is there a depth map for O'Brien Lake?
The Minnesota DNR has not published bathymetry for O'Brien Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in O'Brien Lake?
The most recent DNR survey (2013) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.
Is O'Brien Lake stocked?
Yes. The DNR stocked walleye in 2024.
When was O'Brien Lake last surveyed?
The Minnesota DNR last surveyed O'Brien Lake in 2013, the most recent of 2 surveys on record. A survey that old is a starting point, not a current reading.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .