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Rating depth structure for lake trout.
Recent public catches load as you reach this section.
99-acre lake near Cook County. The lake tops out around 60 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Dunn runs 99 acres with 2.3 miles of edge. The shoreline is moderately structured (index 1.7) — enough points and pockets to pattern. Roughly 45% of the water is 15 ft or less as modeled, the band where the food chain lives. Call it 0.9 mi long by 0.3 mi wide at the broadest reach. You'll find it in Cook County. Closest neighbour on DepthScout: East Otter, 0 mi south of here.
Spring puts lake trout in skinny water — 10 to 40 ft is the zone. Warm water sends them out to 18 to 60 ft; cold water stacks them in 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 51 ft, rated prime for summer lake trout. Plan around early morning in the warm months. A white tube jig (deep) or a magnum spoon on downrigger covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (15 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 18 to 60 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (51 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (15 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 15 to 60 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (51 ft) | White tube jig, Airplane jig |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 51 ft.
Season dates, license requirements, and size and bag limits for Minnesota waters are set by the Minnesota DNR — and special regulations can apply to Dunn specifically, so confirm the current rules before you fish.
Check the official Minnesota fishing regulations →
Dunn is about 60 ft (18 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target lake trout on Dunn.
Deep basin is the top-rated area: a deep basin in about 51 ft of water that rates prime for lake trout in summer. Every other rated spot, per species and season, is on the map above.
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Dunn is regulated by the Minnesota DNR. Check the official Minnesota regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
East Otter 0 mi · Sock 1 mi · Birch 1 mi · Partridge 1 mi · Rat 1 mi · South 2 mi · Moss 2 mi · Surber 2 mi · Duncan 2 mi · North Lake 2 mi, ON · Poplar 2 mi · Topper 2 mi
See how Dunn stacks up: best lake trout lakes in Minnesota
More water nearby: Cook County fishing maps (351 charts). Browse all Minnesota fishing maps. See every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.