Marr Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Marr Lake, ON

Max 6 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

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

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 Marr 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 Marr Lake on the board.

Fishing Marr Lake: what the data says

13-acre lake in Bruce County, Ontario. The lake tops out around 6 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. The season-by-season read for each species follows, from the map's own numbers.

Marr Lake maps at 13 acres behind 0.6 miles of shoreline. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Bruce County claims this one. Its nearest charted neighbour, Cyprus Lake, is 1 mi to the southwest.

Yellow Perch fishing at Marr Lake

Spring puts yellow perch in skinny water — 2 to 6 ft is the zone. Summer fish stay in 2 to 6 ft, and winter fish hold in 2 to 6 ft. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 3 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 6 ft	midday & dawn	Shallow bay flat (3 ft)	Small jig + curly tail, Perch-pattern micro crank
Summer	2 to 6 ft	dawn	Deep basin (5 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	2 to 6 ft	midday	Deep basin (5 ft)	Jigging spoon (small), Perch rig / spreader
Winter	2 to 6 ft	midday & dawn	Deep basin (5 ft)	Tungsten jig + spikes, Rattle spoon (small)

Rock Bass fishing at Marr Lake

Spring puts rock bass in skinny water — 1 to 6 ft is the zone. Summer fish stay in 2 to 6 ft, and winter fish hold in 2 to 6 ft. Shoreline break is the standout, a drop-off at roughly 3 ft, rated prime for fall rock bass. Plan around the evening in the warm months. A ned rig (small) or a marabou jig covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 6 ft	midday & dawn	open water	1/16 oz jig + grub, Small inline spinner
Summer	2 to 6 ft	dusk	Shoreline break (3 ft)	Ned rig (small), Marabou jig
Fall	2 to 6 ft	midday	Shoreline break (3 ft)	Small tube jig, Inline spinner
Winter	2 to 6 ft	midday	Deep basin (5 ft)	Tungsten jig + plastic, Small spoon + spike

Pumpkinseed fishing at Marr Lake

Spring puts pumpkinseed in skinny water — 1 to 6 ft is the zone. Summer fish stay in 1 to 6 ft, and winter fish hold in 2 to 6 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring pumpkinseed. Plan around the evening and early morning in the warm months. A micro tube or a sponge spider (fly) covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 6 ft	midday & dusk	Shallow bay flat (3 ft)	Micro jig under a float, Tiny beetle-spin
Summer	1 to 6 ft	dusk & dawn	Shallow bay flat (3 ft)	Micro tube, Sponge spider (fly)
Fall	2 to 6 ft	dusk & dawn	Shallow bay flat (3 ft)	Micro jig + waxworm, Small spoon tipped
Winter	2 to 6 ft	dawn	Shallow bay flat (3 ft)	Tungsten ice jig + plastic, Tiny spoon

Notable structure

Marr Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 5 ft down.

Deep basin: deep basin, around 5 ft
Shallow bay flat: weed flat, around 3 ft
Back-bay flat: weed flat, around 3 ft
Shoreline break: drop-off, around 3 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Marr Lake?

Marr Lake is about 6 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 Marr Lake?

Anglers target yellow perch, rock bass, pumpkinseed on Marr Lake.

Where is the best fishing spot on Marr 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. Open the map above to see every rated spot for each species and season.

When is the best time to fish Marr Lake?

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.

What are the fishing regulations for Marr Lake?

Fishing on Marr 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

Cyprus Lake 1 mi · Loon Lake 1 mi · Cameron Lake 2 mi · Horseshoe Marsh 2 mi · Bartley Lake 3 mi · Emmett Lake 4 mi · George Lake 4 mi · Lower Andrew Lake 4 mi · Upper Andrew Lake 5 mi · Moore Lake 5 mi · Marley Lake 6 mi · Warder Lake 6 mi

See how Marr Lake stacks up: best yellow perch lakes in Ontario · best rock bass 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.