McKirdy Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

McKirdy Lake, ON

Max 72 ft

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Where to start

Fall shiner run window is on — see the hatch outlook

Hatch outlook

Fall shiner runActive window

Typical here: Sep 1 – Oct 31 · same push on the Ontario side — Simcoe's shiners migrate shallow as the water cools, and the predators ride with them

adultdaylight for the jig bite; after dark the shiners stack under dock lights with walleyes and pike mixed right in — follow the bait, not the spot — millions of shiners move together and the predators ride with them; silver profile and flash matter

Concentrates hard but travels — the school (and the walleyes under it) can be off a river mouth one week and miles upriver the next.

Jig-and-minnow is the event's signature — a frozen emerald shiner on a 1/4 oz jig drifted along the run; silver jerkbaits and trolled crankbaits take the roaming fish; blade baits under the schools.

The event happens over river mouths and the first miles upriver, warming shallow shorelines, and rocky points where the displaced bait stacks

Next on this water

June mayfly hatch (walleye lakes) · mayflyJun 1 – Aug 10 · in ~8 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.

Depth · ft

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Recent catches at McKirdy Lake

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Fishing McKirdy Lake: what the data says

65-acre lake in Thunder Bay District, Ontario. The lake tops out around 72 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. Below is the species-by-species picture, pulled from the same data the map uses.

Traced from the shoreline, McKirdy Lake runs 65 acres with 2.4 miles of edge. Index 2.1 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 40% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 0.5 mi long by 0.5 mi wide at the broadest reach. The water lies in Thunder Bay District. The nearest mapped water is Shamrock Lake, 1 mi to the northeast.

Northern Pike fishing at McKirdy Lake

Spring puts northern pike in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 8 to 20 ft, wintering in 5 to 15 ft. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 6 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	2 to 8 ft	midday & dawn	Shallow bay flat (6 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Shallow bay flat (6 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Shallow bay flat (6 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Shallow bay flat (6 ft)	Tip-ups, Large jigging spoon

Notable structure

McKirdy Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 61 ft down.

Deep basin: deep basin, around 61 ft
Break off the point: drop-off, around 32 ft
Main-lake point: point, around 18 ft
Secondary point: point, around 18 ft
Shallow bay flat: weed flat, around 6 ft
Back-bay flat: weed flat, around 6 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is McKirdy Lake?

McKirdy Lake is about 72 ft (22 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 McKirdy Lake?

Anglers target northern pike on McKirdy Lake.

Where is the best fishing spot on McKirdy Lake?

Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for northern pike in spring. The interactive chart above rates every spot for each species and season.

When is the best time to fish McKirdy Lake?

For northern pike, 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 McKirdy Lake?

Fishing on McKirdy 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

Shamrock Lake 1 mi · Keemle Lake 2 mi · Gorge Lake 6 mi · Cosgrave Lake 9 mi · Cox Lake 10 mi · Forgan Lake 10 mi · Postagoni Lake 10 mi · Kilgour Lake 11 mi · Oskawe Lake 12 mi · Georgia Lake 12 mi · Lake Jean 14 mi · Parland Lake 14 mi

See how McKirdy Lake stacks up: best northern pike lakes in Ontario

More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. 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.