Leishman Lake Depth Map & Fishing Spots (ON)

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

Next on this water

Spring bug season (brook trout lakes) · forageApr 25 – Jun 30 · in ~8 months

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

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Recent catches at Leishman Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Leishman Lake on the board.

Fishing Leishman Lake: what the data says

86-acre lake in Algoma District, Ontario. The lake tops out around 76 ft. The depth data here comes from the Ontario MNRF survey of 2024 (an MNRF lake survey). Every species below gets its seasonal read from the same numbers driving the chart.

Drawn out, this is 86 acres of water rimmed by 2.7 miles of bank. Index 2.1 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 32% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 1.1 mi end to end and 0.3 mi across at its widest. You'll find it in Algoma District. Closest neighbour on DepthScout: Roussain Lake, 0 mi west of here.

Brook Trout fishing at Leishman Lake

The spring pattern is a shallow one: brook trout in 2 to 15 ft. As the season builds they drop to 10 to 30 ft, wintering in 3 to 20 ft. Top water on the chart: Main-lake point, a point in the 14 ft range, prime in spring. 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 (14 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	open water	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (14 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Back-bay flat (4 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

6 pieces of structure are mapped here — Deep basin, around 73 ft, is the deepest of them.

Deep basin: deep basin, around 73 ft
Break off the point: drop-off, around 52 ft
Secondary point: point, around 23 ft
Main-lake point: point, around 14 ft
Back-bay flat: weed flat, around 4 ft
Shallow bay flat: weed flat, around 2 ft

Leishman Lake fishing regulations

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 Leishman Lake specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Leishman Lake?

Leishman Lake is about 76 ft (23 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2024 (an MNRF lake survey).

What fish are in Leishman Lake?

Anglers target brook trout on Leishman Lake.

Where is the best fishing spot on Leishman Lake?

Main-lake point is the top-rated area: a point in about 14 ft of water that rates prime for brook trout in spring. The interactive chart above rates every spot for each species and season.

When is the best time to fish Leishman Lake?

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.

What are the fishing regulations for Leishman Lake?

Fishing on Leishman 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.

Nearby waters

Roussain Lake 0 mi · Metivier Lake 1 mi · Paquette Lake 4 mi · Devil's Lake 5 mi · Fern Lake 5 mi · Boat Lake 6 mi · Deer Lake 6 mi · Vixen Lake 6 mi · Whitman Lake 7 mi · Castleman Lake 7 mi · Midge Lake 7 mi · Strums Lake 8 mi

See how Leishman Lake stacks up: 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 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.