Lyons Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Lyons Lake, ON

Max 60 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 here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

Depth · ft

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Recent catches at Lyons Lake

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Fishing Lyons Lake: what the data says

500-acre lake in Thunder Bay District, Ontario. The lake tops out around 60 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1973, a decades-old survey (an MNRF lake survey). What the data behind the map says about each species, season by season:

Drawn out, this is 499 acres of water rimmed by 4.7 miles of bank. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. Roughly 68% of the water is 15 ft or less, the band where the food chain lives. Figure 1.7 mi of water from one end to the other, 0.7 mi at the beam. The water lies in Thunder Bay District. The nearest mapped water is Isobel Lake, 3 mi to the northeast.

Northern Pike fishing at Lyons Lake

In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Break off the point is the standout, a drop-off at roughly 10 ft, rated prime for fall northern pike. Time it for early morning and the evening. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (1 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Break off the point (10 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Break off the point (10 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Break off the point (10 ft)	Tip-ups, Large jigging spoon

Notable structure

Lyons Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 49 ft down.

Deep basin: deep basin, around 49 ft
Break off the point: drop-off, around 10 ft
Main-lake point: point, around 1 ft
Secondary point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Lyons Lake?

Lyons Lake is about 60 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1973, a decades-old survey (an MNRF lake survey).

What fish are in Lyons Lake?

Anglers target northern pike on Lyons Lake.

Where is the best fishing spot on Lyons Lake?

Break off the point is the top-rated area: a drop-off in about 10 ft of water that rates prime for northern pike in fall. Open the map above to see every rated spot for each species and season.

When is the best time to fish Lyons 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 Lyons Lake?

Fishing on Lyons 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

Isobel Lake 3 mi · Greta Lake 6 mi · McQuesten Lake 7 mi · Hutchison Lake 8 mi · Hilder Lake 9 mi · Mollison Lake 9 mi · Alfred Lake 9 mi · Treptow Lake 10 mi · Bankfield Lake 11 mi · Springwater Lake 11 mi · Ansig Lake 11 mi · Eaton Lake 11 mi

See how Lyons 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. Bathymetry: published agency survey data. 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.