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81-acre lake in Muskoka District Municipality, Ontario. The lake tops out around 30 ft. The depth data here comes from the Ontario MNRF survey of 2005 (an MNRF lake survey). Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Flossie Lake runs 81 acres with 2.5 miles of edge. The shoreline is moderately structured (index 2) — enough points and pockets to pattern. Roughly 56% of the water is 15 ft or less, the band where the food chain lives. The basin spans about 0.9 mi end to end and 0.4 mi across at its widest. You'll find it in Muskoka District Municipality. The nearest mapped water is West Ermine L., 1 mi to the south.
Spring puts lake trout in skinny water — 8 to 30 ft is the zone. Summer fish stay in 9 to 30 ft, and winter fish hold in 8 to 30 ft. Deep basin is the standout, a deep basin at roughly 30 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.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 30 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 9 to 30 ft | dawn | Deep basin (30 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 6 to 30 ft | dusk & dawn | Main-lake point (10 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 8 to 30 ft | dawn | Deep basin (30 ft) | White tube jig, Airplane jig |
Come spring, look for yellow perch tight to the bank in 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 9 to 30 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. Best bite is early morning. A drop-shot micro plastics or a small spoon tipped with worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (30 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 9 to 30 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft | midday & dawn | Deep basin (30 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 3 to 12 ft before dropping to 10 to 25 ft for winter. Spring brown bullhead concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Fish it in after dark and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (6 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (6 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (6 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (30 ft) |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 30 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 Flossie Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Flossie Lake is about 30 ft (9 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2005 (an MNRF lake survey).
Anglers target lake trout, yellow perch, brown bullhead on Flossie Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for lake trout in summer. The interactive chart above rates every spot for each 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 Flossie 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.
West Ermine L. 1 mi · Camp Lake 1 mi · Doughnut Lake 2 mi · Samlet Lake 2 mi · South Tasso Lake 2 mi · Tasso Lake 2 mi · Toad Lake 3 mi · Martencamp Lake 3 mi · Park Lake 3 mi · Maggie Lake 3 mi · Big Hoover Lake 3 mi · Victory Lake 3 mi
See how Flossie Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Muskoka District Municipality fishing maps (276 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.