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42-acre lake in Cochrane District, Ontario. The lake tops out around 140 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. Species by species, here's what the data says the year looks like.
The outline encloses 43 acres, worked by 1.3 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. Littoral water — the productive band under ~15 ft — makes up 10% of this chart. End to end it runs roughly 0.3 mi, about 0.3 mi across. It sits in Cochrane District. If the bite dies, Ramey Lake is 0 mi to the northwest.
Spring brook trout on Lallan Lake hold shallow, usually 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. The chart's best answer is Shallow bay flat — feeding flat, 17 ft, good for winter. Prime time lands in early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (17 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | open water | 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 | Shallow bay flat (17 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, splake slide up into 5 to 25 ft. By summer they slide out to 25 to 60 ft, and by winter most fish are in 10 to 45 ft. If you only fish one area, make it Main-lake point: a point around 25 ft that scores prime in fall. In summer the feeding windows fall in early morning and the evening. Keep a trolled spoon at the thermocline or a white tube jig (deep) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Main-lake point (25 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 25 to 60 ft | dawn & dusk | Main-lake point (25 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (25 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Break off the point (86 ft) | Jigging spoon tipped with minnow head, Small white tube |
The chart marks 5 structure features on Lallan Lake; the deepest is Deep basin at about 135 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
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 Lallan Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Lallan Lake is about 140 ft (43 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target brook trout, splake on Lallan Lake.
Main-lake point is the top-rated area: a point in about 25 ft of water that rates prime for splake in fall. The interactive chart above rates every spot for each species and season.
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.
Fishing on Lallan 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.
Ramey Lake 0 mi · Old Man Lake 0 mi · Panagapka Lake 1 mi · Hazel Lake 1 mi · Seahorse Lake 1 mi · Gourlay Lake 1 mi · Columbus Lake 2 mi · Gaf Lake 2 mi · Wynn Lake 2 mi · Lulu Lake 2 mi · Little Esker Lake 2 mi · Rozon Lake 2 mi
See how Lallan Lake stacks up: best brook trout lakes in Ontario · best splake lakes in Ontario
More water nearby: Cochrane District fishing maps (673 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.