Minnesota · DNR survey data

Mavis Lake

Mavis Lake covers 9 acres in Cook County, running to 55 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.

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DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
Brook troutStocked · 2024
Present, stocked

Present and managed by the DNR.

Rainbow trout
Present (last recorded 1989)

Last recorded in the 1989 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

YearSpeciesStocked
2024Brook Trout1,000 fingerlings
2022Brook Trout790 fingerlings
2020Brook Trout1,000 fingerlings
2018Brook Trout1,000 fingerlings
2016Brook Trout1,000 fingerlings

Recent reports

Mavis Lake fishing reports

Recent reports on Mavis 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.

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Cook County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Mavis Lake?

The Minnesota DNR has not published bathymetry for Mavis Lake, so this page carries the survey record instead: species, catch rates and stocking history.

What fish are in Mavis Lake?

The most recent DNR survey (2016) recorded brook trout, rainbow trout.

Is Mavis Lake stocked?

Yes. The DNR stocked brook trout in 2024; the stocking table on this page lists every year back to 2016.

When was Mavis Lake last surveyed?

The Minnesota DNR last surveyed Mavis Lake in 2016, the most recent of 4 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 .