Strouth 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 Strouth 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 Strouth Lake on the board.

Fishing Strouth Lake: what the data says

74-acre lake in Algoma District, Ontario. The lake tops out around 46 ft. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (a transect sounding survey). The rest of this page walks each species through its year, using the map's own scoring.

Traced from the shoreline, Strouth Lake runs 61 acres with 2.1 miles of edge, with 5 islands in the mix. Index 1.9 on the shoreline: a few honest points and pockets, nothing labyrinthine. The shallow band under 15 ft claims about 57% of the surface — that's where the groceries are. Figure 0.5 mi of water from one end to the other, 0.3 mi at the beam. The water lies in Algoma District. The nearest mapped water is Gunterman L. 19, 0 mi to the north.

Brook Trout fishing at Strouth Lake

Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 3 to 20 ft. Top water on the chart: Break off the point, a drop-off in the 23 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Secondary point (4 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Break off the point (23 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Secondary point (4 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Shallow bay flat (18 ft)	Small jigging spoon, Tungsten jig + plastic

Brown Bullhead fishing at Strouth Lake

The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. As the season builds they drop to 3 to 12 ft, wintering in 10 to 25 ft. Top water on the chart: Back-bay flat, a weed flat in the 4 ft range, prime in spring. Time it for after dark and the evening.

Season	Depth	Best window	Start at
Spring	2 to 8 ft	dusk & night	Back-bay flat (4 ft)
Summer	3 to 12 ft	night & dusk	Back-bay flat (4 ft)
Fall	5 to 15 ft	dusk	Back-bay flat (4 ft)
Winter	10 to 25 ft	midday	Deep basin (46 ft)

Notable structure

The chart marks 6 structure features on Strouth Lake; the deepest is Deep basin at about 46 ft.

Deep basin: deep basin, around 46 ft
Break off the point: drop-off, around 23 ft
Shallow bay flat: weed flat, around 18 ft
Main-lake point: point, around 16 ft
Secondary point: point, around 4 ft
Back-bay flat: weed flat, around 4 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Strouth Lake?

Strouth Lake is about 46 ft (14 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (a transect sounding survey).

What fish are in Strouth Lake?

Anglers target brook trout, brown bullhead on Strouth Lake.

Where is the best fishing spot on Strouth Lake?

Back-bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for brown bullhead in spring. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Strouth 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 Strouth Lake?

Fishing on Strouth 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

Gunterman L. 19 0 mi · Gunterman L. 8 1 mi · Gunterman L. 1 2 mi · Sheriff Lake 2 mi · Horne Lake 2 mi · Rye Lake 3 mi · Porridge Lake 3 mi · Mellon Lake 3 mi · Banana Lake 3 mi · Bouck L. 21 3 mi · Flag Lake 3 mi · Elliot L. 3 mi

See how Strouth Lake stacks up: best brook trout lakes in Ontario · best brown bullhead 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.