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127-acre lake in Algoma District, Ontario. The lake tops out around 59 ft. The depth data here comes from the Ontario MNRF survey of 1974, a decades-old survey (a transect sounding survey). Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 127 acres of water rimmed by 5.6 miles of bank, broken up by 4 islands. An index of 3.6 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 61% of this chart. End to end it runs roughly 1.6 mi, about 0.4 mi across. You'll find it in Algoma District. The nearest mapped water is Brilliant Lake, 1 mi to the south.
The spring pattern is a shallow one: lake trout in 10 to 40 ft. Midsummer fish sit out in 18 to 59 ft before dropping to 15 to 59 ft for winter. The spot to know is Deep basin, a deep basin in about 59 ft of water that rates prime for lake trout in summer. Plan around early morning in the warm months. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (13 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 | Break off the point (13 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 15 to 59 ft | dawn | Deep basin (59 ft) | White tube jig, Airplane jig |
The chart marks 6 structure features on Jarvis Lake; the deepest is Deep basin at about 59 ft.
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 Jarvis Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Jarvis Lake is about 59 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1974, a decades-old survey (a transect sounding survey).
Anglers target lake trout on Jarvis 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. Open the map above to see every rated spot for each species and season.
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 Jarvis 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.
Brilliant Lake 1 mi · Lost Loon Lake 1 mi · Jarvis L. 9 1 mi · Phelbin L. 1 mi · Kaufman Lake 1 mi · Christman L. 2 mi · Northland L. 2 mi · Reserve Lake 2 mi · Weashkog L. 2 mi · Unnamed Lake 2 mi · Crooked Lakes 2 mi · Fillion L. 2 mi
See how Jarvis Lake stacks up: best lake trout lakes in Ontario
More water nearby: Algoma District fishing maps (1026 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.