Lake Mary fishing: Northern Pike, Largemouth Bass, Walleye
Target species: Northern Pike, Largemouth Bass, Walleye, Black Bullhead, White Sucker, Black Crappie, Bluegill
Boat: 2 ramps and launches on file for this water.
Start here: Launch at Mary Lake (N) Public Water Access Site, 1 lane.
The lake
Lake Mary covers 2,432 acres in Minnesota, across Douglas County. It is a lake: 91.8% of it is 24 feet deep or less; the deepest point measured is at least 30 feet (9.1 m). Our records hold 16 species for this water.
7 target fish, led by Northern Pike
- Northern Pike — Feeding water: 50–75°F.
- Largemouth Bass — Feeding water: 65–85°F.
- Walleye — Feeding water: 50–75°F.
- Black Bullhead — Feeding water: 70–80°F.
- White Sucker — Feeding water: 50–70°F.
- Black Crappie — Feeding water: 65–75°F.
- Bluegill — Feeding water: 70–85°F.
Also recorded here: Cisco, Rock Bass, Yellow Perch, Green Sunfish, Pumpkinseed, Bowfin, Brown Bullhead, Yellow Bullhead, Common Carp.

Depth and bottom
Deepest measured point: at least 30 ft (9.1 m). That is the deepest contour line: the bottom goes deeper. 91.8% of the water is 24 feet or shallower. We hold 50 depth contour lines for this water.
- 0–2 ft: 13.7% of the water
- 2–4 ft: 7.5% of the water
- 4–6 ft: 6.6% of the water
- 6–8 ft: 4.9% of the water
- 8–10 ft: 3.8% of the water
- 10–12 ft: 3.3% of the water
- 12–14 ft: 3.4% of the water
- 14–16 ft: 3.9% of the water
- 16–18 ft: 5% of the water
- 18–20 ft: 9% of the water
- 20–22 ft: 11.8% of the water
- 22–24 ft: 18.9% of the water
- 24–26 ft: 7.9% of the water
- 26–28 ft: 0.3% of the water
- 28–30 ft: 0.2% of the water
Water and conditions
Our water temperature readings average 68°F; they do not cover the whole year, so this is not a yearly average. The coldest single reading we hold is 49°F and the warmest is 79°F; the warmest monthly average is 76°F. pH averages 8.3. These readings span 2016–2025.

2 ramps and launches on this water
On this water we hold 2 trailer ramps.
- Mary Lake (N) Public Water Access Site — 1 lane. DNR Division of Parks and Trails.
- Mary Lake (S) Public Water Access Site — 1 lane. DNR Division of Parks and Trails.
Fee and opening hours are blank for all 2 places in this list: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.

What is hard here
Only 2 public ramps are on file, so the launch decides where you fish.
Where this data comes from
- Minnesota DNR — Minnesota DNR: depth contours: class A, a survey of the bottom.
- Minnesota DNR — Minnesota DNR: reported depths: class B, a depth figure measured and published by an agency, without a bottom map.
- Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.































