Minnesota · DNR survey data
Extortion Lake
Extortion Lake covers 16 acres in Cook County, running to 36 feet, last surveyed by the DNR in 2018. 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
Present and managed by the DNR.
Present in recent DNR surveys.
Last recorded in the 2002 survey and not seen since.
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 |
|---|---|---|
| 2025 | Rainbow Trout | 1,439 fingerlings |
| 2023 | Rainbow Trout | 1,500 fingerlings |
| 2021 | Rainbow Trout | 1,500 fingerlings |
| 2019 | Rainbow Trout | 1,015 fingerlings |
| 2018 | Rainbow Trout | 1,019 fingerlings |
| 2016 | Rainbow Trout | 1,000 fingerlings |
Recent reports
Extortion Lake fishing reports
Recent reports on Extortion 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
- Trip Lake · 11 ac · 0.6 mi
- Magnetic Lake · 447 ac · 2.9 mi
- Tucker Lake · 147 ac · 3.3 mi
- Gunflint Lake · 4,009 ac · 3.3 mi
- Loon Lake · 1,096 ac · 3.3 mi
- Karl Lake · 121 ac · 3.4 mi
- Long Island Lake · 884 ac · 3.8 mi
- Round Lake · 155 ac · 3.8 mi
Quick answers
Frequently asked questions
Is there a depth map for Extortion Lake?
The Minnesota DNR has not published bathymetry for Extortion Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Extortion Lake?
The most recent DNR survey (2018) recorded rainbow trout, brown trout, splake.
Is Extortion Lake stocked?
Yes. The DNR stocked rainbow trout in 2025; the stocking table on this page lists every year back to 2016.
When was Extortion Lake last surveyed?
The Minnesota DNR last surveyed Extortion Lake in 2018, 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 .