Armour Lake Depth Map & Fishing Spots (Algoma District, ON)

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Lake depth chart

Armour Lake, ON

Max 36 ft

Today's read

Where to start

Hopper & ant season (windward banks) window is on — see the hatch outlook

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 on this water are approximations. Never use for navigation. Always check local regulations.

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Recent catches at Armour 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 Armour Lake on the board.

Fishing Armour Lake: what the data says

138-acre lake in Algoma District, Ontario. The lake tops out around 36 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Species by species, here's what the data says the year looks like.

On the chart, Armour Lake draws 143 acres inside 4.1 miles of shoreline. A development index of 2.5 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 82% of the water is 15 ft or less as modeled, the band where the food chain lives. Figure 1.1 mi of water from one end to the other, 0.6 mi at the beam. The water lies in Algoma District. For a second option, Welcome Lake lies 1 mi east.

Brook Trout fishing at Armour Lake

In spring, brook trout run shallow here, mostly 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. Summer brook trout concentrate at Break off the point, a prime-rated drop-off around 16 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (9 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Break off the point (16 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (9 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Break off the point (16 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Count 6 structure marks on this chart. The deepest, Deep basin, sits near 31 ft.

Deep basin: deep basin, around 31 ft
Break off the point: drop-off, around 16 ft
Main-lake point: point, around 9 ft
Secondary point: point, around 9 ft
Shallow bay flat: weed flat, around 4 ft
Back-bay flat: weed flat, around 4 ft

Public access & boat ramps

Armour Lake — ramp

Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.

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

Check the official Ontario fishing regulations →

Common questions

How deep is Armour Lake?

Armour Lake is about 36 ft (11 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.

What fish are in Armour Lake?

Anglers target brook trout on Armour Lake.

Where is the best fishing spot on Armour Lake?

Break off the point is the top-rated area: a drop-off in about 16 ft of water that rates prime for brook trout in summer. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Armour 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 Armour Lake?

Fishing on Armour 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

Welcome Lake 1 mi · South Branch Lake 2 mi · Pine L. 35 3 mi · Dead Lake 3 mi · Jet Lake 3 mi · Shadow Lake 4 mi · Foxwell L. (Hoffman L. 9) 4 mi · Patterson Lake 4 mi · Goulais Lake 5 mi · Tujak Lake 5 mi · Gravel Lake 5 mi · Coppens Lake 5 mi

See how Armour 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. 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.