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324-acre lake in Sudbury District, Ontario. The lake tops out around 59 ft. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (a transect sounding survey). Species by species, here's what the data says the year looks like.
On the chart, Lower Matagamasi Lake draws 326 acres inside 5.2 miles of shoreline, with 2 islands in the mix. Index 2.1 on the shoreline: a few honest points and pockets, nothing labyrinthine. Littoral water — the productive band under ~15 ft — makes up 35% of this chart. Call it 1.6 mi long by 0.6 mi wide at the broadest reach. You'll find it in Sudbury District. For a second option, Edna Lake lies 1 mi northwest.
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Warm water sends them out to 18 to 59 ft; cold water stacks them in 15 to 59 ft. Top water on the chart: Deep basin, a deep basin in the 59 ft range, prime in summer. Fish it in early morning and you'll meet the bite. Throw a white tube jig (deep) or a magnum spoon on downrigger until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Secondary point (9 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 18 to 59 ft | dawn | Deep basin (59 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Secondary point (9 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 15 to 59 ft | dawn | Deep basin (59 ft) | White tube jig, Airplane jig |
Spring yellow perch on Lower Matagamasi Lake hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 15 to 35 ft. Put Shallow bay flat first on the milk run — a weed flat near 12 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (12 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (19 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (19 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (19 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Lower Matagamasi Lake carries 7 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 59 ft down.
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 Lower Matagamasi Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Lower Matagamasi Lake is about 59 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (a transect sounding survey).
Anglers target lake trout, yellow perch on Lower Matagamasi Lake.
Deep basin is the top-rated area: a deep basin in about 59 ft of water that rates prime for lake trout in summer. Every other rated spot, per species and season, is on the map above.
For lake trout, 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.
Fishing on Lower Matagamasi 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.
Edna Lake 1 mi · Colin Scott Lake 1 mi · Kearns Lake 2 mi · Harvey Lake 2 mi · Kettyle Lake 3 mi · Donald Lake 3 mi · Loney Lake 3 mi · L. 27 5 mi · Irish Lake 5 mi · Maskinonge Lake 5 mi · Matagamasi Lake 6 mi · Pedro Lake 6 mi
See how Lower Matagamasi Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.