Madden Lake Depth Map & Fishing Spots (Lanark County, ON)

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Lake depth chart

Madden Lake, ON

Max 8 ft

Today's read

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 ~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.

Depth · ft

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Recent catches at Madden Lake

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Fishing Madden Lake: what the data says

37-acre lake in Lanark County, Ontario. The lake tops out around 8 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. The season-by-season read for each species follows, from the map's own numbers.

Madden Lake maps at 36 acres behind 1.7 miles of shoreline. A middling shoreline index (2) gives it some bays to work without being a maze. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. Tip to tip the water measures near 0.7 mi with a 0.2-mi widest point. Lanark County claims this one. Robbs Lake sits 3 mi southwest — the closest neighbouring chart.

Northern Pike fishing at Madden Lake

Early season northern pike use the shallows, holding in 2 to 8 ft. Even in summer they hold at 2 to 8 ft; winter keeps them in 2 to 8 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (3 ft)	#5 inline spinner, Spoon (red/white)
Summer	2 to 8 ft	dawn & dusk	Shallow bay flat (3 ft)	Bucktail, Weedless spoon over cabbage
Fall	2 to 8 ft	midday & dawn	Shallow bay flat (3 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	2 to 8 ft	midday	Shallow bay flat (3 ft)	Tip-ups, Large jigging spoon

Brown Bullhead fishing at Madden Lake

Early season brown bullhead use the shallows, holding in 2 to 8 ft. Even in summer they hold at 2 to 8 ft; winter keeps them in 2 to 8 ft. The chart's best answer is Deep basin — deep basin, 7 ft, prime for winter. Best bite is after dark and the evening.

Season	Depth	Best window	Start at
Spring	2 to 8 ft	dusk & night	Shallow bay flat (3 ft)
Summer	2 to 8 ft	night & dusk	Shallow bay flat (3 ft)
Fall	2 to 8 ft	dusk	Deep basin (7 ft)
Winter	2 to 8 ft	midday	Deep basin (7 ft)

Notable structure

The chart marks 5 structure features on Madden Lake; the deepest is Main-lake point at about 8 ft.

Main-lake point: point, around 8 ft
Secondary point: point, around 8 ft
Deep basin: deep basin, around 7 ft
Break off the point: drop-off, around 4 ft
Shallow bay flat: weed flat, around 3 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Madden Lake?

Madden Lake is about 8 ft (2 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 Madden Lake?

Anglers target northern pike, brown bullhead on Madden Lake.

Where is the best fishing spot on Madden Lake?

Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for northern pike in spring. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Madden 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 Madden Lake?

Fishing on Madden 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

Robbs Lake 3 mi · Reid Lake 3 mi · Samuel Lake 4 mi · MacKay Lake 4 mi · Bow Lake 4 mi · Clayton Lake 4 mi · Raycroft Lake 4 mi · Murray Lake 5 mi · Duncs Lake 5 mi · Kates Lake 5 mi · Lowney Lake 6 mi · Peterwhite Lake 6 mi

See how Madden Lake stacks up: best northern pike lakes in Ontario · best brown bullhead lakes in Ontario

More water nearby: Lanark County fishing maps (74 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.