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59-acre lake in Algoma District, Ontario. The lake tops out around 65 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 2026 (an MNRF lake survey). Species by species, here's what the data says the year looks like.
The outline encloses 59 acres, worked by 1.9 miles of shoreline. A middling shoreline index (1.8) gives it some bays to work without being a maze. 39% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.5 mi long by 0.3 mi wide at the broadest reach. Algoma District claims this one. If the bite dies, Mamainse Lake is 2 mi to the northeast.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Main-lake point: a point around 7 ft that scores prime in spring. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (7 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (33 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (7 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (2 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring lake trout on Gimlet Lake hold shallow, usually 10 to 40 ft. They move out to 20 to 65 ft in summer and finish the year down in 16 to 65 ft. Put Deep basin first on the milk run — a deep basin near 65 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a white tube jig (deep) or a magnum spoon on downrigger.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Secondary point (10 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 20 to 65 ft | dawn | Deep basin (65 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Secondary point (10 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 16 to 65 ft | dawn | Deep basin (65 ft) | White tube jig, Airplane jig |
Gimlet Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 65 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 Gimlet Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Gimlet Lake is about 65 ft (20 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2026 (an MNRF lake survey).
Anglers target brook trout, lake trout on Gimlet Lake.
Deep basin is the top-rated area: a deep basin in about 65 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 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 Gimlet 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.
Mamainse Lake 2 mi · Upper Smith Lake 3 mi · Cedar Lakes 3 mi · Brant Lake 4 mi · Pancake Lake 4 mi · Middle Pancake Lake 6 mi · Upper Pancake Lake 6 mi · Nicolet L. 16 6 mi · Annie Lake 7 mi · Pipe Lake 8 mi · West Joco Lake 8 mi · Wiley Lake 8 mi
See how Gimlet Lake stacks up: best lake trout lakes in Ontario · best brook 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: published agency survey data. 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.