Matti L. Depth Map & Fishing Spots (ON)

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Lake depth chart

Matti L., ON

Max 45 ft

Today's read

Where to start

Hopper & ant season (windward banks) window is on — see the hatch outlook

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

Next on this water

Spring bug season (brook trout lakes) · forageApr 25 – Jun 30 · in ~8 months

Hex (giant mayfly) · mayflyMay 25 – 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 Matti L.

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 Matti L. on the board.

Fishing Matti L.: what the data says

11-acre lake in Sudbury 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. What follows comes from the same scoring engine that paints the spots above.

Matti L. maps at 10 acres behind 0.6 miles of shoreline. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. Littoral water — the productive band under ~15 ft — makes up 23% of this chart, as modeled. Sudbury District claims this one. If the bite dies, Lower Cachege Lake is 2 mi to the west.

Brook Trout fishing at Matti L.

Come spring, look for brook trout tight to the bank in 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Shoreline break: a drop-off around 20 ft that scores prime in summer. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Shallow bay flat (5 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Shoreline break (20 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	open water	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Shoreline break (20 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 38 ft.

Deep basin: deep basin, around 38 ft
Shoreline break: drop-off, around 20 ft
Shallow bay flat: weed flat, around 5 ft
Back-bay flat: weed flat, around 5 ft

Matti L. 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 Matti L. specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Matti L.?

Matti L. 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 Matti L.?

Anglers target brook trout on Matti L..

Where is the best fishing spot on Matti L.?

Shoreline break is the top-rated area: a drop-off in about 20 ft of water that rates prime for brook trout in summer. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Matti L.?

For brook trout, 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 Matti L.?

Fishing on Matti L. 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

Lower Cachege Lake 2 mi · Lackner Lake 2 mi · Cecile Lake 2 mi · McNaught L. 7 3 mi · Foot Lake 3 mi · Serviss Lake 5 mi · Halsey Lake 5 mi · Emerald Lake (lac Emerald) 6 mi · Le Blanc Lake 6 mi · Borden Lake 7 mi · Westover Lake 7 mi · Dace Lake 7 mi

See how Matti L. stacks up: best brook trout lakes in Ontario

More water nearby: Sudbury District fishing maps (868 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.