Marmil Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Marmil Lake, ON

Max 45 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.

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Recent catches at Marmil 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 Marmil Lake on the board.

Fishing Marmil Lake: what the data says

141-acre lake in Timiskaming District, Ontario. The lake tops out around 45 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Every species below gets its seasonal read from the same numbers driving the chart.

The drawn water covers 140 acres wrapped in 2.8 miles of bank. With a 1.7 development index there's bank structure worth casting at, in moderation. About 41% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 0.8 mi of water from one end to the other, 0.6 mi at the beam. It sits in Timiskaming District. Its nearest charted neighbour, Peter Lake, is 1 mi to the north.

Northern Pike fishing at Marmil Lake

Come spring, look for northern pike tight to the bank in 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 5 ft that scores prime in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.

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

Notable structure

6 pieces of structure are mapped here — Deep basin, around 38 ft, is the deepest of them.

Deep basin: deep basin, around 38 ft
Break off the point: drop-off, around 20 ft
Main-lake point: point, around 11 ft
Secondary point: point, around 11 ft
Shallow bay flat: weed flat, around 5 ft
Back-bay flat: weed flat, around 5 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Marmil Lake?

Marmil Lake is about 45 ft (14 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 Marmil Lake?

Anglers target northern pike on Marmil Lake.

Where is the best fishing spot on Marmil Lake?

Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for northern pike in spring. Open the map above to see every rated spot for each species and season.

When is the best time to fish Marmil 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 Marmil Lake?

Fishing on Marmil 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

Peter Lake 1 mi · Fan Lake 1 mi · Perry Lake 1 mi · Gerry Lake 1 mi · Fallduck Lakes 1 mi · Laurad Lake 2 mi · Hancock Lake 2 mi · Mima Lake 3 mi · Barris Lake 3 mi · Sheba Lake 25 3 mi · Slim Lake 3 mi · Sunny Lake 3 mi

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

More water nearby: Timiskaming District fishing maps (515 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.