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Shared by DepthScout anglers. Exact spots stay private, always.
104-acre lake in Bruce County, Ontario. The lake tops out around 3 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. What follows comes from the same scoring engine that paints the spots above.
On the chart, Ira Lake draws 108 acres inside 4.7 miles of shoreline — 3 islands included. An index of 3.2 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Call it 0.6 mi long by 0.5 mi wide at the broadest reach. The water lies in Bruce County. Closest neighbour on DepthScout: Ague Lake, 2 mi northwest of here.
Spring yellow perch on Ira Lake hold shallow, usually 1 to 3 ft. Depth-wise the year is flat: 1 to 3 ft in summer, 1 to 3 ft once it turns cold. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 1 to 3 ft | dawn | Deep basin (3 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 1 to 3 ft | midday | Deep basin (3 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 1 to 3 ft | midday & dawn | Deep basin (3 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts northern pike in skinny water — 1 to 3 ft is the zone. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 3 ft. Warm-month bites cluster around early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 1 to 3 ft | dawn & dusk | Shallow bay flat (3 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 1 to 3 ft | midday & dawn | Shallow bay flat (3 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 1 to 3 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
Spring puts smallmouth bass in skinny water — 1 to 3 ft is the zone. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Fall smallmouth bass concentrate at Main-lake point, a prime-rated point around 3 ft. Warm-month bites cluster around early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | dawn & dusk | Main-lake point (3 ft) | Ned rig, Tube jig |
| Summer | 1 to 3 ft | dawn & dusk | Break off the point (1 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 1 to 3 ft | midday & dawn | Main-lake point (3 ft) | Jerkbait, Blade bait |
| Winter | 1 to 3 ft | midday | Break off the point (1 ft) | Blade bait, Hair jig |
When the water first warms, pumpkinseed slide up into 1 to 3 ft. There's no big seasonal slide here — summer means 1 to 3 ft, winter 1 to 3 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. In summer the feeding windows fall in the evening and early morning. Keep a micro tube or a sponge spider (fly) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | midday & dusk | Shallow bay flat (3 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 1 to 3 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro tube, Sponge spider (fly) |
| Fall | 1 to 3 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 1 to 3 ft | dawn | Shallow bay flat (3 ft) | Tungsten ice jig + plastic, Tiny spoon |
The spring pattern is a shallow one: brown bullhead in 1 to 3 ft. The depth story barely changes: 1 to 3 ft through summer, 1 to 3 ft in winter. Top water on the chart: Deep basin, a deep basin in the 3 ft range, prime in winter. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | dusk & night | Shallow bay flat (3 ft) | |
| Summer | 1 to 3 ft | night & dusk | Shallow bay flat (3 ft) | |
| Fall | 1 to 3 ft | dusk | Deep basin (3 ft) | |
| Winter | 1 to 3 ft | midday | Deep basin (3 ft) |
Structure-wise the chart holds 6 features, led in depth by Main-lake point at roughly 3 ft.
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 Ira Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Ira Lake is about 3 ft (1 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 yellow perch, northern pike, smallmouth bass, pumpkinseed, brown bullhead on Ira Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Every other rated spot, per species and season, is on the map above.
For yellow perch, 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 Ira 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.
Ague Lake 2 mi · Lindsay L. 14 2 mi · Lindsay L. 12 2 mi · Miller Lake 5 mi · Otter Lake 6 mi · Britain Lake 7 mi · Georgian Bay - Bruce Peninsula & Tobermory 8 mi · Little Lake 9 mi · Rowes Lake 10 mi · Scugog Lake 10 mi · Crane Lake 10 mi · Warder Lake 11 mi
See how Ira Lake stacks up: best smallmouth bass lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best pumpkinseed lakes in Ontario
More water nearby: Bruce County fishing maps (60 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.