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50-acre lake in Algoma District, Ontario. The lake tops out around 33 ft. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey). The season-by-season read for each species follows, from the map's own numbers.
The outline encloses 50 acres, worked by 2 miles of shoreline. With a 2 development index there's bank structure worth casting at, in moderation. The shallow band under 15 ft claims about 41% of the surface — that's where the groceries are. Figure 0.7 mi of water from one end to the other, 0.2 mi at the beam. Algoma District claims this one. If the bite dies, Glenn L. is 1 mi to the southeast.
The spring pattern is a shallow one: lake whitefish in 10 to 33 ft. The depth story barely changes: 10 to 33 ft through summer, 10 to 33 ft in winter. The spot to know is Deep basin, a deep basin in about 33 ft of water that rates prime for lake whitefish in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 33 ft | midday & dawn | Break off the point (31 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 10 to 33 ft | dawn | Deep basin (33 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (31 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 10 to 33 ft | midday & dawn | Deep basin (33 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The spring pattern is a shallow one: cisco (lake herring) in 8 to 33 ft. The depth story barely changes: 10 to 33 ft through summer, 10 to 33 ft in winter. The spot to know is Deep basin, a deep basin in about 33 ft of water that rates prime for cisco (lake herring) in spring. Plan around early morning in the warm months. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 33 ft | dawn & dusk | Deep basin (33 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 10 to 33 ft | dawn | Deep basin (33 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 10 to 33 ft | dawn | Deep basin (33 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
The chart marks 5 structure features on Three Loon L.; the deepest is Deep basin at about 33 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Three Loon L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Three Loon L. is about 33 ft (10 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey).
Anglers target lake whitefish, cisco (lake herring) on Three Loon L..
Deep basin is the top-rated area: a deep basin in about 33 ft of water that rates prime for lake whitefish in summer. Every other rated spot, per species and season, is on the map above.
For lake whitefish, 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 Three Loon L. is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Glenn L. 1 mi · Frigid Digit L. 1 mi · Canoe Lake 3 mi · Belle Lake 3 mi · Proctor Lake 3 3 mi · Lillie Lake 3 mi · Ivans L. 4 mi · McCarthy Lake 4 mi · Lizard Lake 4 mi · Christie Lake 4 mi · Lewis Lake 2 4 mi · Wigmore Lake 4 mi
See how Three Loon L. stacks up: best lake whitefish lakes in Ontario · best cisco (lake herring) lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.