20 miles north of Grand Marais
Cook County, Minnesota · 48.0523° N, 90.3873° W
Directions to Flour Lake Public Water Access SiteApple Maps
Directions open in Google or Apple Maps, to the Minnesota DNR public access site.
Updated 19 Oct 2026, 5:55 pm EDT.
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Minnesota DNR lake survey, fetched 15 Oct 2026. Not for navigation.
1 public access site on Flour Lake.
Minnesota DNR public water accesses, fetched 15 Oct 2026.
Minnesota DNR stocking reports list 7 stockings of Flour Lake in 5 of the years 2016 to 2024. The most recent, in 2024, included 3,450 walleye fingerlings. Species stocked: lake trout, walleye.
Latest: 2024: 3,450 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 Flour Lake was in July 2023: 12 trap nets caught 6 species. The DNR also ran a targeted survey in August 2025; this section uses the latest standard survey.
Yellow perch per trap net, standard surveys: 1988 1.8 · 1991 0.1 · 1994 7.9 · 2004 0.1 · 2023 0.8
Walleye: 36 measured, 6 to 29 in, half 16 in or longer; average 2 lb, above normal (normal 0.5–1.5 lb).
Smallmouth bass: 34 measured, 1 to 17 in, half 10 in or longer; average 0.35 lb, normal (normal 0.2–0.4 lb).
Yellow perch: 59 measured, 1 to 8 in, half 2 in or longer; average 0.1 lb, normal (normal 0.1–0.4 lb).
Tlc: 121 measured, 7 to 19 in, half 14 in or longer.
Source: Minnesota DNR Fisheries lake survey, 17 Jul 2023, 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 15 ft: the Secchi depth across 8 readings, 1956–2025.
Minnesota Pollution Control Agency and volunteer Secchi readings, via Minnesota DNR LakeFinder, fetched 15 Oct 2026.
Minnesota DNR lake survey; straight-line miles.
Flour Lake is 75 feet at its deepest point, measured by Minnesota DNR survey. It covers 330 acres.
Yes. 1 public access site is listed: Flour Lake Public Water Access Site.
Yes. Minnesota DNR stocking reports list 7 stockings of it in 5 of the years 2016 to 2024. The most recent, in 2024, included 3,450 walleye fingerlings.
Minnesota DNR’s July 2023 standard survey caught 6 species, most often yellow perch, green sunfish, walleye and smallmouth bass.
About 78% of the lake's area is deeper than 10 feet, measured from Minnesota DNR depth contours.