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Shared by DepthScout anglers. Exact spots stay private, always.
7-acre lake in Renfrew County, Ontario. The lake tops out around 24 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. What the data behind the map says about each species, season by season:
Drawn out, this is 7 acres of water rimmed by 0.5 miles of bank. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. The shallow band under 15 ft claims about 82% of the surface on the model — that's where the groceries are. You'll find it in Renfrew County. For a second option, Little Black Lake lies 1 mi southwest.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 7 to 24 ft, and winter fish settle into 3 to 20 ft. Deep basin is the standout, a deep basin at roughly 20 ft, rated prime for summer brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 7 to 24 ft | dawn & dusk | Deep basin (20 ft) | 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 | Deep basin (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 20 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 St. Pierre Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
St. Pierre Lake is about 24 ft (7 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target brook trout on St. Pierre Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for brook trout in summer. Open the map above to see every rated 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 St. Pierre 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.
Little Black Lake 1 mi · Limestone Lake 2 mi · Oriole Lake 2 mi · Fergusons Lake 3 mi · Holmes Lake 3 mi · Wabun Lake 3 mi · Scully Lake 4 mi · Elbow Lake 4 mi · Pats Lake 4 mi · Battery Lake 4 mi · Calabogie Lake 4 mi · Kennelly Lake 4 mi
See how St. Pierre Lake stacks up: best brook trout lakes in Ontario
More water nearby: Renfrew County fishing maps (298 charts). Browse all Ontario fishing maps or see every water on DepthScout. 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.