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1,076-acre lake in Algoma District, Ontario. The lake tops out around 300 ft. The depth data here comes from the Ontario MNRF survey of 1965, a decades-old survey (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
Emerald Lake maps at 1,081 acres behind 8.3 miles of shoreline, broken up by an island. With a 1.8 development index there's bank structure worth casting at, in moderation. About 9% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 2.5 mi long by 1.2 mi wide at the broadest reach. Algoma District claims this one. Little Duck Lake sits 2 mi west — the closest neighbouring chart.
Come spring, look for lake trout tight to the bank in 10 to 40 ft. They move out to 50 to 120 ft in summer and finish the year down in 20 to 80 ft. If you only fish one area, make it Main-lake point: a point around 1 ft that scores good in fall. Best bite is early morning. A white tube jig (deep) or a magnum spoon on downrigger is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (1 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Deep basin (300 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (1 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Deep basin (300 ft) | White tube jig, Airplane jig |
Emerald Lake carries 8 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 300 ft down.
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 Emerald Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Emerald Lake is about 300 ft (91 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1965, a decades-old survey (a transect sounding survey).
Anglers target lake trout on Emerald Lake.
Main-lake point is the top-rated area: a point in about 1 ft of water that rates good for lake trout in fall. Scroll up to the map for the complete spot list by species and season.
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 Emerald Lake 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.
Little Duck Lake 2 mi · Peak Lake 2 mi · Loon Lake 2 mi · Granary Lake 2 mi · Pistol Lake 3 mi · Upper Cranberry Lake 3 mi · Lake of the Mountains 4 mi · McFadden Lake 5 mi · Allen Lake 5 mi · Rossmere Lake 5 mi · Bass Lake 6 mi · Matinenda Lake 6 mi
See how Emerald Lake stacks up: best lake trout 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.