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56-acre lake in Algoma District, Ontario. The lake tops out around 20 ft. The depth data here comes from the Ontario MNRF survey of 1975, a decades-old survey (a transect sounding survey). Species by species, here's what the data says the year looks like.
Traced from the shoreline, Boss Lake runs 57 acres with 1.5 miles of edge. At index 1.4 the outline is almost a bowl — read the depth changes, not the shoreline. About 51% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Tip to tip the water measures near 0.6 mi with a 0.3-mi widest point. You'll find it in Algoma District. Closest neighbour on DepthScout: Wigwas Lake, 1 mi southeast of here.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. As the season builds they drop to 6 to 20 ft, wintering in 3 to 20 ft. Top water on the chart: Deep basin, a deep basin in the 20 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (5 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 20 ft | dawn & dusk | Deep basin (20 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (5 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Summer is a 6 to 20 ft game here, winter a 6 to 20 ft one. The chart's best answer is Deep basin — deep basin, 20 ft, prime for fall. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 6 to 20 ft | dawn | Deep basin (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 6 to 20 ft | midday | Deep basin (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 6 to 20 ft | midday & dawn | Deep basin (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 6 to 20 ft before dropping to 6 to 20 ft for winter. Fall smallmouth bass concentrate at Secondary point, a prime-rated point around 12 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a drop shot (goby/minnow) or a ned rig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (5 ft) | Ned rig, Tube jig |
| Summer | 6 to 20 ft | dawn & dusk | Break off the point (8 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 6 to 20 ft | midday & dawn | Secondary point (12 ft) | Jerkbait, Blade bait |
| Winter | 6 to 20 ft | midday | Break off the point (8 ft) | Blade bait, Hair jig |
Come spring, look for rock bass tight to the bank in 2 to 10 ft. They move out to 5 to 20 ft in summer and finish the year down in 6 to 20 ft. If you only fish one area, make it Main-lake point: a point around 5 ft that scores prime in summer. Best bite is the evening. A ned rig (small) or a marabou jig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Main-lake point (5 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Main-lake point (5 ft) | Ned rig (small), Marabou jig |
| Fall | 6 to 20 ft | midday | Break off the point (8 ft) | Small tube jig, Inline spinner |
| Winter | 6 to 20 ft | midday | Deep basin (20 ft) | Tungsten jig + plastic, Small spoon + spike |
6 pieces of structure are mapped here — Deep basin, around 20 ft, is the deepest of them.
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 Boss Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Boss Lake is about 20 ft (6 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1975, a decades-old survey (a transect sounding survey).
Anglers target brook trout, yellow perch, smallmouth bass, rock bass on Boss Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species Ontario's MNRF recorded in the nearest surveyed lakes, filtered to this lake's depth and habitat.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for yellow perch in fall. The interactive chart above rates every spot for each species and season.
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Boss 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.
Wigwas Lake 1 mi · Echo Bay 3 mi · Little Lake George 4 mi · Trotter Lake 5 mi · Root River 5 mi · Maud Lake 5 mi · Syrette Lake 6 mi · Echo Lake 6 mi · Elizabeth Lake 6 mi · Sandy Lake 6 mi · Mabel Lake 7 mi · Lake George 7 mi
See how Boss Lake stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best brook trout lakes in Ontario · best rock bass 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.