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195-acre lake in Algoma District, Ontario. The lake tops out around 125 ft. The depth data here comes from the Ontario MNRF survey of 1980 (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
Drawn out, this is 196 acres of water rimmed by 4.7 miles of bank, broken up by 13 islands. The 2.4 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Roughly 37% of the water is 15 ft or less, the band where the food chain lives. Figure 1.1 mi of water from one end to the other, 0.6 mi at the beam. You'll find it in Algoma District. For a second option, Seabrook Lake lies 5 mi southeast.
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Warm water sends them out to 50 to 120 ft; cold water stacks them in 20 to 80 ft. Top water on the chart: Deep basin, a deep basin in the 124 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 | Break off the point (17 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Deep basin (124 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (17 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (17 ft) | White tube jig, Airplane jig |
6 pieces of structure are mapped here — Deep basin, around 124 ft, is the deepest of them.
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 White Rock Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
White Rock Lake is about 125 ft (38 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1980 (a transect sounding survey).
Anglers target lake trout on White Rock Lake.
Deep basin is the top-rated area: a deep basin in about 124 ft of water that rates prime for lake trout in summer. The interactive chart above rates every 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 White Rock 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.
Seabrook Lake 5 mi · Boyer Lake 5 mi · Sesabic Lake 6 mi · Heal Lake 7 mi · Anvil Lake 7 mi · Island Lake 7 mi · Mystery Lake 7 mi · Mountain Ash Lake 8 mi · Lelonde Lake 8 mi · Gavor Lake 8 mi · Saymo Lake 8 mi · Upper Twin L. 8 mi
See how White Rock 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.