Minnesota · DNR survey data
Mary Lake
Mary Lake covers 129 acres in Todd County, running to 58 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.
DNR survey data
Fish species
Northern pikeGood numbers13.7per gill net19"Typical33"Biggest
Lengths measured · 193 fish
Recent · 2021 + 2023 + 2025Lengths measured · 173 fish
2025Lengths measured · 16 fish
2023Lengths measured · 4 fish
2021Only 4 fish measured that year — too few to read as a shape.
Lengths measured · 89 fish
2017BluegillJust a few18.4per trap net7"Typical9"Biggest
Lengths measured · 825 fish
Recent · 2021 + 2023 + 2025Lengths measured · 253 fish
2025Lengths measured · 79 fish
2023Lengths measured · 493 fish
2021Lengths measured · 201 fish
2020CrappieJust a few2.4per trap net7"Typical10"Biggest
Lengths measured · 857 fish
Recent · 2021 + 2023 + 2025Lengths measured · 39 fish
2025Lengths measured · 16 fish
2023Lengths measured · 802 fish
2021Lengths measured · 19 fish
2020Yellow perchJust a few0.2per gill net7"Typical8"Biggest
Lengths measured · 13 fish
Recent · 2021 + 2023 + 2025Lengths measured · 1 fish
2025Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 3 fish
2023Only 3 fish measured that year — too few to read as a shape.
Lengths measured · 9 fish
2021Only 9 fish measured that year — too few to read as a shape.
Lengths measured · 32 fish
2017Rates 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 | Walleye | 77 adults |
| 2024 | Walleye | 22 adults |
| 2023 | Walleye | 576 fingerlings |
| 2022 | Walleye | 50,000 fry |
| 2021 | Walleye | 696 fingerlings |
| 2019 | Walleye | 1,325 fingerlings |
| 2018 | Walleye | 50,000 fry |
| 2017 | Walleye | 296 fingerlings |
Recent reports
Mary Lake fishing reports
Recent reports on Mary 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.
Public water access
Getting on the water
- Mary Lake (trailer launch)
Within 30 miles
Nearby lakes
- St. Anna Lake · 126 ac · 3.3 mi
- Cedar Lake · 236 ac · 3.5 mi
- Big Birch Lake · 2,107 ac · 3.9 mi
- Mound Lake · 270 ac · 4.6 mi
- Pine Lake · 178 ac · 4.6 mi
- Bass Lake · 94 ac · 4.8 mi
- Long Lake · 92 ac · 5 mi
- Sylvia Lake · 85 ac · 5.8 mi
Quick answers
Frequently asked questions
Is there a depth map for Mary Lake?
The Minnesota DNR has not published bathymetry for Mary Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Mary Lake?
The most recent DNR survey (2025) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch.
Does Mary Lake have a public access?
Yes. Mary Lake has one public access site: Mary Lake (trailer launch).
Is Mary Lake stocked?
Yes. The DNR stocked walleye in 2025; the stocking table on this page lists every year back to 2017.
When was Mary Lake last surveyed?
The Minnesota DNR last surveyed Mary Lake in 2025, the most recent of 13 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .