Minnesota · DNR survey data

Long Lake

Long Lake covers 395 acres in Big Stone County, running to 10 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.

Open Long Lake in the live map → Write a report

DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
WalleyeStocked · 2025
Present, stocked
38per trap net
6"Typical
6"Biggest
5"6"

Lengths measured · 449 fish

Recent · 2023
5"10"15"20"

Lengths measured · 449 fish

2023
5"10"15"20"

Lengths measured · 52 fish

2020
5"10"15"20"

Lengths measured · 6 fish

2019
5"10"15"20"

Only 6 fish measured that year — too few to read as a shape.

Lengths measured · 88 fish

2017
5"10"15"20"
Bluegill
No recent survey rating

No recent survey rating.

CrappieStocked · 2024
Just a few
4.6per trap net
8"Typical
10"Biggest
5"10"

Lengths measured · 37 fish

Recent surveys
1"2"4"6"8"10"12"

Lengths measured · 16 fish

2020
1"2"4"6"8"10"12"

Lengths measured · 32 fish

2019
1"2"4"6"8"10"12"

Lengths measured · 37 fish

2017
1"2"4"6"8"10"12"

Lengths measured · 147 fish

2013
1"2"4"6"8"10"12"
Yellow perchStocked · 2024
Fair numbers
3per gill net
Typical
10"Biggest

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
2025Walleye204,540 fry
2024Black Crappie97 adults
2024Walleye200,000 fry
2024Yellow Perch4,056 adults
2023Walleye200,319 fry
2022Walleye200,000 fry
2021Walleye200,000 fry
2021Yellow Perch6,805 adults
2019Walleye200,000 fry
2018Walleye100,000 fry
2016Walleye102,565 fry

Recent reports

Long Lake fishing reports

Recent reports on Long 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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Big Stone County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Long Lake?

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

What fish are in Long Lake?

The most recent DNR survey (2023) recorded walleye, bluegill, crappie, yellow perch.

Is Long Lake stocked?

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

When was Long Lake last surveyed?

The Minnesota DNR last surveyed Long Lake in 2023, the most recent of 9 surveys on record.

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

Page updated .