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Rating depth structure for brook trout.
Recent public catches load as you reach this section.
14-acre lake in Algoma District, Ontario. The lake tops out around 25 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1983 (a transect sounding survey). Here's the year, species by species, as the scoring engine sees it.
The outline encloses 14 acres, worked by 0.7 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. About 72% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Algoma District claims this one. If the bite dies, Rioux L. 36 is 1 mi to the east.
When the water first warms, brook trout slide up into 2 to 15 ft. Summer is an 8 to 25 ft game here, winter a 3 to 20 ft one. Start at Deep basin. It's a deep basin holding about 20 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 8 to 25 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (20 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (6 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Sturgeon L. 27 carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 20 ft down.
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 Sturgeon L. 27 specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sturgeon L. 27 is about 25 ft (8 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1983 (a transect sounding survey).
Anglers target brook trout on Sturgeon L. 27.
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 Sturgeon L. 27 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.
Rioux L. 36 1 mi · Rioux Lake 16 2 mi · Upper Grindstone Lake 2 mi · Izaak Lake 2 mi · Grindstone Lake 2 mi · Rioux Lake 35 2 mi · Sturgeon Lake 33 2 mi · Rioux Lake 10 4 mi · Rioux Lake 28 4 mi · Long-tail L. 6 mi · Squawk L. 6 mi · Wye Lake 6 mi
See how Sturgeon L. 27 stacks up: best brook trout lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.