Minnesota · DNR survey data
O'Leary Lake
O'Leary Lake covers 202 acres in St. Louis County, running to 52 feet, last surveyed by the DNR in 2016. 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
WalleyeFair numbers3.3per gill net20"Typical26"Biggest
Lengths measured · 23 fish
Recent · 2016Lengths measured · 23 fish
2016Lengths measured · 17 fish
2001Smallmouth bassPresent1.8per gill net13"Typical19"Biggest
Lengths measured · 14 fish
Recent · 2016Lengths measured · 14 fish
2016Lengths measured · 16 fish
2001Northern pikeGood numbers11.3per gill net23"Typical26"Biggest
Lengths measured · 75 fish
Recent · 2016Lengths measured · 75 fish
2016Lengths measured · 72 fish
2001Yellow perchJust a few0.8per gill net5"Typical6"Biggest
Lengths measured · 15 fish
Recent · 2016Lengths measured · 15 fish
2016Lengths measured · 12 fish
2001Rates 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.
Recent reports
O'Leary Lake fishing reports
Recent reports on O'Leary 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
- Little Trout Lake · 272 ac · 1.6 mi
- Sand Point Lake · 8,527 ac · 3.1 mi
- Tooth Lake · 59 ac · 5.1 mi
- Spring Lake · 219 ac · 5.3 mi
- Mukooda Lake · 774 ac · 5.8 mi
- Net Lake · 70 ac · 5.8 mi
- Namakan Lake · 24,066 ac · 6.1 mi
- Johnson Lake · 1,737 ac · 6.1 mi
Quick answers
Frequently asked questions
Is there a depth map for O'Leary Lake?
The Minnesota DNR has not published bathymetry for O'Leary Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in O'Leary Lake?
The most recent DNR survey (2016) recorded walleye, largemouth bass, smallmouth bass, northern pike, bluegill, yellow perch.
Is O'Leary Lake stocked?
No stocking is on record for O'Leary Lake in the DNR's stocking database.
When was O'Leary Lake last surveyed?
The Minnesota DNR last surveyed O'Leary Lake in 2016, 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 .