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.
Species Survey Data
| 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
Stocking History
| Year | Species | Number | Stage |
|---|---|---|---|
| 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
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