Minnesota · DNR survey data
Olga Lake
Olga Lake covers 13 acres in Cook County, running to 45 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
Last recorded in the 1991 survey and not seen since.
SplakeStocked · 2024Present, stockedPresent and managed by the DNR.
Present and managed by the DNR.
Lengths measured · 13 fish
Recent · 2016Lengths measured · 13 fish
2016Lengths measured · 11 fish
2009Lengths measured · 16 fish
2004Rates 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 | Splake | 1,200 fingerlings |
| 2022 | Splake | 1,200 fingerlings |
| 2020 | Splake | 1,200 fingerlings |
| 2019 | Splake | 1,150 fingerlings |
| 2018 | Splake | 1,000 fingerlings |
| 2016 | Splake | 1,000 fingerlings |
Recent reports
Olga Lake fishing reports
Recent reports on Olga 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
- Esther Lake · 78 ac · 0.5 mi
- Edith Lake · 35 ac · 1.2 mi
- Devilfish Lake · 405 ac · 1.8 mi
- Chester Lake · 52 ac · 1.9 mi
- Sunfish Lake · 85 ac · 2 mi
- Greenwood Lake · 2,043 ac · 2.9 mi
- Margaret Lake · 6 ac · 3.3 mi
- Loft Lake · 14 ac · 3.5 mi
Quick answers
Frequently asked questions
Is there a depth map for Olga Lake?
The Minnesota DNR has not published bathymetry for Olga Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Olga Lake?
The most recent DNR survey (2016) recorded brook trout, splake.
Is Olga Lake stocked?
Yes. The DNR stocked splake in 2024; the stocking table on this page lists every year back to 2016.
When was Olga Lake last surveyed?
The Minnesota DNR last surveyed Olga Lake in 2016, the most recent of 6 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 .