Minnesota · DNR survey data

Thunderbird Lake

Thunderbird Lake covers 97 acres in Lake County, running to 18 feet, last surveyed by the DNR in 2025. 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
WalleyeStocked · 2025
One of the best around
15.7per gill net
12"Typical
24"Biggest
3"24"

Lengths measured · 190 fish

Recent · 2022 + 2025
3"5"10"15"20"25"

Lengths measured · 114 fish

2025
3"5"10"15"20"25"

Lengths measured · 76 fish

2022
3"5"10"15"20"25"

Lengths measured · 54 fish

2013
3"5"10"15"20"25"

Lengths measured · 64 fish

2008
3"5"10"15"20"25"
Northern pike
Just a few
1.1per gill net
26"Typical
36"Biggest
18"36"

Lengths measured · 15 fish

Recent · 2022 + 2025
18"20"25"30"35"36"

Lengths measured · 2 fish

2025
18"20"25"30"35"36"

Only 2 fish measured that year — too few to read as a shape.

Lengths measured · 13 fish

2022
18"20"25"30"35"36"

Lengths measured · 3 fish

2013
18"20"25"30"35"36"

Only 3 fish measured that year — too few to read as a shape.

Lengths measured · 2 fish

2008
18"20"25"30"35"36"

Only 2 fish measured that year — too few to read as a shape.

Yellow perch
Good numbers
6.2per gill net
2"Typical
9"Biggest
2"9"

Lengths measured · 419 fish

Recent · 2022
2"4"6"8"9"

Lengths measured · 419 fish

2022
2"4"6"8"9"

Lengths measured · 7 fish

2013
2"4"6"8"9"

Only 7 fish measured that year — too few to read as a shape.

Lengths measured · 63 fish

2008
2"4"6"8"9"

Lengths measured · 10 fish

2003
2"4"6"8"9"
Brook trout
Present (last recorded 1985)

Last recorded in the 1985 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
2025Walleye88,000 fry
2024Walleye88,000 fry
2021Walleye88,000 fry
2017Walleye97,000 fry
2016Walleye88,000 fry

Recent reports

Thunderbird Lake fishing reports

Recent reports on Thunderbird 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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Lake County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Thunderbird Lake?

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

What fish are in Thunderbird Lake?

The most recent DNR survey (2025) recorded walleye, northern pike, yellow perch, brook trout.

Is Thunderbird Lake stocked?

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

When was Thunderbird Lake last surveyed?

The Minnesota DNR last surveyed Thunderbird Lake in 2025, the most recent of 11 surveys on record.

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

Page updated .