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392-acre lake in Algoma District, Ontario. The lake tops out around 93 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. What the data behind the map says about each species, season by season:
Traced from the shoreline, Folson Lake runs 396 acres with 9.9 miles of edge. A development index of 3.5 means a maze of bays and points: far more casting targets than a round bowl of the same size. 50% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Call it 1.7 mi long by 1.2 mi wide at the broadest reach. The water lies in Algoma District. The nearest mapped water is Shaule Lake, 1 mi to the east.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Summer pushes them deeper, 28 to 93 ft, and winter fish settle into 20 to 80 ft. Deep basin is the standout, a deep basin at roughly 79 ft, rated prime for summer lake trout. Time it for early morning. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (23 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 28 to 93 ft | dawn | Deep basin (79 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (23 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Deep basin (79 ft) | White tube jig, Airplane jig |
Spring lake whitefish on Folson Lake hold shallow, usually 15 to 45 ft. By summer they slide out to 40 to 90 ft, and by winter most fish are in 25 to 70 ft. The chart's best answer is Deep basin — deep basin, 79 ft, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (42 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Deep basin (79 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Main-lake point (23 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Break off the point (42 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring cisco (lake herring) on Folson Lake hold shallow, usually 10 to 40 ft. By summer they slide out to 40 to 80 ft, and by winter most fish are in 20 to 60 ft. The chart's best answer is Deep basin — deep basin, 79 ft, prime for summer. Prime time lands in early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (42 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Deep basin (79 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 | 20 to 60 ft | dawn | Break off the point (42 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
When the water first warms, yellow perch slide up into 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| 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 | Shallow bay flat (6 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (42 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (79 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, burbot run shallow here, mostly 25 to 70 ft. Summer pushes them deeper, 28 to 93 ft, and winter fish settle into 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 79 ft, rated prime for summer burbot. Time it for after dark and midday. You won't need more than a heavy jig + cut bait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Deep basin (79 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 28 to 93 ft | night & midday | Deep basin (79 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Deep basin (79 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Break off the point (42 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Folson Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 79 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 Folson Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Folson Lake is about 93 ft (28 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, lake whitefish, cisco (lake herring), yellow perch, burbot on Folson Lake.
Deep basin is the top-rated area: a deep basin in about 79 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 Folson 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.
Shaule Lake 1 mi · Moreland Lake 2 mi · Black Lake 2 mi · Walton Lake 3 mi · Gaiashk L. 20 and 21 3 mi · Conley Lake 3 mi · Bull Lake 4 mi · Lockeyer Lake 27 4 mi · Whiskey Lake 4 mi · Beishlag Lake 4 mi · Speck Lake 4 mi · Laitila Lake 4 mi
See how Folson Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best lake whitefish lakes in Ontario · best burbot lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario fishing maps or 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.