Minnesota · DNR survey data

Mayhew Lake

Mayhew Lake covers 221 acres in Cook County, running to 84 feet, last surveyed by the DNR in 2023. 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
Northern pike
Present
0.5per trap net
Typical
26"Biggest
Bluegill
Just a few
0.3per trap net
Typical
3"Biggest
Yellow perch
Fair numbers
3per gill net
4"Typical
7"Biggest
2"7"

Lengths measured · 779 fish

Recent · 2023
1"2"4"6"8"10"

Lengths measured · 779 fish

2023
1"2"4"6"8"10"

Lengths measured · 1208 fish

2019
1"2"4"6"8"10"

Lengths measured · 24 fish

2009
1"2"4"6"8"10"

Lengths measured · 40 fish

2004
1"2"4"6"8"10"
Rainbow troutStocked · 2025
Present, stocked

Present and managed by the DNR.

Brown troutStocked · 2018
Present, stocked

Present and managed by the DNR. Standard survey gear does not count this species reliably.

Lake troutStocked · 2018
Present, stocked

Present and managed by the DNR.

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
2025Rainbow Trout3,200 yearlings
2023Rainbow Trout3,200 yearlings
2021Rainbow Trout3,200 yearlings
2019Rainbow Trout3,200 yearlings
2018Brown Trout3,200 yearlings
2018Lake Trout3,189 yearlings
2016Brown Trout3,200 yearlings

Recent reports

Mayhew Lake fishing reports

Recent reports on Mayhew 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

Public water access

Getting on the water

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Mayhew Lake?

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

What fish are in Mayhew Lake?

The most recent DNR survey (2023) recorded northern pike, bluegill, yellow perch, rainbow trout, brown trout, lake trout.

Does Mayhew Lake have a public access?

Yes. Mayhew Lake has one public access site: Mayhew Lake (carry-in).

Is Mayhew Lake stocked?

Yes. The DNR stocked rainbow trout in 2025; the stocking table on this page lists every year back to 2016.

When was Mayhew Lake last surveyed?

The Minnesota DNR last surveyed Mayhew Lake in 2023, the most recent of 6 surveys on record.

Survey numbers are the Minnesota DNR's. How this site reads them →

Page updated .