Fishing Winslow Lake

Iron County, Michigan · 25 ft max depth · DNR Survey 2013

Scout's Fishing Notes

Winslow Lake supports an exceptional Walleye population of 7.3 fish per acre—one of the densest in the region—but these fish are growing 2.8 inches below state average due to severe overcrowding. The 24-year no-kill regulation created exactly the opposite problem it was designed to solve: instead of balanced predation, the lake now has 75% predator biomass when 20-50% is recommended. Ninety-four percent of Walleye exceed the 15-inch legal size, averaging 19.1 inches, but their slow growth means fewer trophy-size fish. The rocky cobble shoreline provides excellent natural spawning habitat, establishing self-sustaining reproduction since 1996. Bluegill growth improved dramatically from the original stunted population, peaking at 1.5 inches above state average in 2006, but has since declined to 0.3 inches below average as Walleye numbers exploded. Black Crappie are the bright spot among panfish, growing 1.0 inch above state average and averaging 6.9 inches with 46% at acceptable harvest size. Northern Pike suffer from chronically poor growth (1.1 inches below average) with only 18% reaching the traditional 24-inch legal size, prompting removal of size limits to encourage harvest. The lake stratifies thermally with good oxygen down to 16 feet, while deeper areas become oxygen-depleted by late summer. Anglers should focus on the 12-16 foot depths where temperature and oxygen remain favorable. The substrate transitions from rocky cobble near shore to sand, gravel, and silt in deeper areas. With one-third of the shoreline owned by the Forest Service and only 25 cottages, fishing pressure remains moderate despite the lake's excellent road access.

Top PredatorWalleye
Top PanfishBluegill
Overall QualityExceptional Walleye density but severely imbalanced with too many predators limiting panfish and prey fish populations.

Species Survey Data

DNR survey 2013 · Biologist: Jennifer Johnson · Report #0279

Species Count Size Range Growth % Legal
Bluegill 684 1-10" -0.3 below average 36%
Black Crappie 68 2-13" +1 above average 46%
Walleye 48 7-28" -2.8 well below average 94%
Hybrid Sunfish 42 3-8" 38%
Yellow Perch 33 2-12" -0.3 below average 36%
Pumpkinseed 31 2-8" 32%
Smallmouth Bass 24 1-16" 17%
Northern Pike 22 15-30" -1.1 below average 18%
Golden Shiner 9 4-6" 100%
Common Shiner 6 3-4" 100%
White Sucker 5 17-20" 100%
Johnny Darter 2 2-2" 100%
Largemouth Bass 1 1-1" 0%
Central Mudminnow 1 3-3" 100%
Slimy Sculpin 1 2-2" 100%

Water Quality

16 ftGood O₂ Depth
66.71°FSurface Temp
58.9°FBottom Temp
58 mg/L mg/LAlkalinity

Stocking History

YearSpeciesNumberStage
1995 Walleye 2,520 fall fingerling
1994 Walleye 200 fall fingerling
1994 Walleye 4,378 fall fingerling
1993 Walleye 4,894 fall fingerling
1992 Walleye 5,098 fall fingerling
1991 Walleye 7,219 fall fingerling
1990 Walleye 10,246 fall fingerling
1990 Walleye 5,172 fall fingerling
1989 Walleye 1,552 fall fingerling
1988 Walleye 12,000 spring fingerling
1986 Walleye 12,000 spring fingerling
1984 Walleye 10,320 spring fingerling
1982 Walleye 6,253 spring fingerling
1980 Walleye 250,000 fry
1979 Walleye 250,000 fry
1939 Walleye 300,000 fry
1938 Walleye 250,000 fry
1937 Largemouth Bass 300 4 months
1937 Walleye 100,000 fry
1937 Bluegill 7,000 4 months

DNR Management Direction

DNR recommends removing the no-kill Walleye regulation and returning to standard 5-fish, 15-inch minimum harvest to reduce predator biomass. Retain no size limit for Northern Pike to encourage harvest of slow-growing fish.

Fishing Tournaments & Competitions

Check for upcoming registered bass, walleye, and muskellunge tournaments on Winslow Lake.

Michigan Fishing Resources

DNR Fishery Report · Data: Michigan DNR · ← Back to Winslow Lake Guide