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144-acre lake in Algoma District, Ontario. The lake tops out around 13 ft. The depth data here comes from the Ontario MNRF survey of 1981 (a transect sounding survey). Below is the species-by-species picture, pulled from the same data the map uses.
Callahan Lake maps at 144 acres behind 4.2 miles of shoreline — 2 islands included. A development index of 2.5 means a maze of bays and points: far more casting targets than a round bowl of the same size. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. End to end it runs roughly 1.4 mi, about 0.4 mi across. It sits in Algoma District. Kwagama Lake sits 6 mi southwest — the closest neighbouring chart.
Spring brook trout on Callahan Lake hold shallow, usually 2 to 13 ft. Depth-wise the year is flat: 4 to 13 ft in summer, 2 to 13 ft once it turns cold. The chart's best answer is Deep basin — deep basin, 13 ft, prime for summer. 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 13 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 4 to 13 ft | dawn & dusk | Deep basin (13 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 13 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 13 ft | dawn | Deep basin (13 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 13 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 Callahan Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Callahan Lake is about 13 ft (4 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1981 (a transect sounding survey).
Anglers target brook trout on Callahan Lake.
Deep basin is the top-rated area: a deep basin in about 13 ft of water that rates prime for brook trout in summer. The map above holds the full rated-spot list for every 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 Callahan 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.
Kwagama Lake 6 mi · Wildcat Lake 7 mi · Black Beaver Lake 8 mi · Hardtime Lake 9 mi · Agawa Station Lake 9 mi · Viridian Lake 10 mi · White Spruce Lake 10 mi · Black Lake 10 mi · Solitaire Lake 11 mi · Old Woman Lake 11 mi · Mash Lake 12 mi · Wabigoon Lake 13 mi
See how Callahan Lake stacks up: best brook 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.