6 miles southwest of Alexandria
Douglas County, Minnesota · 45.8266° N, 95.4782° W
Directions to Mary Lake (N) Public Water Access SiteApple Maps
Directions open in Google or Apple Maps, to the Minnesota DNR public access sites (2 listed; this is the first).
Updated 19 Oct 2026, 5:59 pm EDT.
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Minnesota DNR lake survey, fetched 15 Oct 2026. Not for navigation.
2 public access sites on Lake Mary.
Minnesota DNR public water accesses, fetched 15 Oct 2026.
Minnesota DNR stocking reports list 10 stockings of Lake Mary in 8 of the years 2016 to 2024. The most recent, in 2024, included 1,644,000 walleye fry. Species stocked: walleye.
Latest: 2024: 1,644,000 walleye fry.
Source: Minnesota DNR Fisheries (LakeFinder stocking reports), fetched 15 Oct 2026. How we measure
Measured from Minnesota DNR contours. How we measure
Minnesota DNR’s latest standard fish survey of Lake Mary was in August 2025: 12 gill nets and 15 trap nets caught 15 species.
Walleye per gill net, standard surveys: 2009 18 · 2013 10 · 2017 13 · 2021 13 · 2025 13
Bluegill per trap net, standard surveys: 2009 13 · 2013 11 · 2017 21 · 2021 29 · 2025 18
Walleye: 162 measured, 12 to 27 in, half 15 in or longer; average 1.4 lb, normal (normal 1.2–2.1 lb).
Northern pike: 68 measured, 11 to 32 in, half 18 in or longer; average 1.9 lb, normal (normal 1.6–2.8 lb).
Largemouth bass: 76 measured, 5 to 20 in, half 14 in or longer; average 1.4 lb, above normal (normal 0.5–1.2 lb).
Black crappie: 43 measured, 4 to 13 in, half 10 in or longer; average 0.61 lb, above normal (normal 0.3–0.6 lb).
Bluegill: 384 measured, 2 to 8 in, half 6 in or longer; average 0.19 lb, normal (normal 0.1–0.2 lb).
Also caught: black bullhead, bowfin (dogfish), brown bullhead, common carp, hybrid sunfish, white sucker, yellow bullhead.
Source: Minnesota DNR Fisheries lake survey, 11 Aug 2025, via LakeFinder, fetched 15 Oct 2026. Normal range: DNR’s range for lakes of the same class (43 classes, grouped by water chemistry and shape). Each line has its own scale. How we measure
Measured water clarity averages about 6 ft: the Secchi depth across 4 readings, 2013–2025.
Minnesota Pollution Control Agency and volunteer Secchi readings, via Minnesota DNR LakeFinder, fetched 15 Oct 2026.
Minnesota DNR lake survey; straight-line miles.
Lake Mary is 40 feet at its deepest point, measured by Minnesota DNR survey. It covers 2,450 acres.
Yes. 2 public access sites are listed: Mary Lake (N) Public Water Access Site; Mary Lake (S) Public Water Access Site.
Yes. Minnesota DNR stocking reports list 10 stockings of it in 8 of the years 2016 to 2024. The most recent, in 2024, included 1,644,000 walleye fry.
Minnesota DNR’s August 2025 standard survey caught 15 species, most often bluegill, walleye, northern pike and pumpkinseed.
About 64% of the lake's area is deeper than 10 feet, measured from Minnesota DNR depth contours.