3 miles southwest of Scandia
Washington County, Minnesota · 45.2186° N, 92.8598° W
Directions to Big Marine Lake, Co Park Public Water Access SiteApple Maps
Directions open in Google or Apple Maps, to the Minnesota DNR public access sites (3 listed; this is the first).
Updated 15 Oct 2026, 5:39 pm EDT.
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Minnesota DNR lake survey, fetched 15 Oct 2026. Not for navigation.
3 public access sites on Big Marine Lake.
Minnesota DNR public water accesses, fetched 15 Oct 2026.
Minnesota DNR stocking reports list 22 stockings of Big Marine Lake in 9 of the years 2016 to 2024. The most recent, in 2024, included 15,060 walleye fingerlings. Species stocked: walleye.
Latest: 2024: 15,060 walleye fingerlings.
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 Big Marine Lake was in August 2018: 12 gill nets and 9 trap nets caught 12 species. The DNR also ran a targeted survey in July 2024; this section uses the latest standard survey.
Walleye per gill net, standard surveys: 1999 6.6 · 2004 1.1 · 2008 2.4 · 2014 3.4 · 2018 4.2
Bluegill per trap net, standard surveys: 1999 45 · 2004 16 · 2008 48 · 2014 9.6 · 2018 5.0
Walleye: 51 measured, 8 to 23 in, half 15 in or longer; average 1.7 lb, normal (normal 1.2–2.7 lb).
Northern pike: 190 measured, 11 to 27 in, half 17 in or longer; average 1.1 lb, below normal (normal 2–3.5 lb).
Largemouth bass: 27 measured, 5 to 15 in, half 12 in or longer; average 1 lb, above normal (normal 0.4–1 lb).
Black crappie: 39 measured, 3 to 11 in, half 6 in or longer; average 0.18 lb, normal (normal 0.1–0.3 lb).
Bluegill: 138 measured, 3 to 9 in, half 7 in or longer; average 0.16 lb, normal (normal 0.1–0.3 lb).
Also caught: black bullhead, brown bullhead, hybrid sunfish, yellow bullhead.
Source: Minnesota DNR Fisheries lake survey, 6 Aug 2018, 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 10 ft: the Secchi depth across 10 readings, 2006–2024.
Minnesota Pollution Control Agency and volunteer Secchi readings, via Minnesota DNR LakeFinder, fetched 15 Oct 2026.
Minnesota DNR lake survey; straight-line miles.
Big Marine Lake is 60 feet at its deepest point, measured by Minnesota DNR survey. It covers 1,799 acres.
Yes. 3 public access sites are listed: Big Marine Lake, Co Park Public Water Access Site; Big Marine Lake (S) Public Water Access Site; Big Marine Lake (N) Public Water Access Site.
Yes. Minnesota DNR stocking reports list 22 stockings of it in 9 of the years 2016 to 2024. The most recent, in 2024, included 15,060 walleye fingerlings.
Minnesota DNR’s August 2018 standard survey caught 12 species, most often northern pike, bluegill, walleye and black crappie.
About 44% of the lake's area is deeper than 10 feet, measured from Minnesota DNR depth contours.