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300-acre lake in Sudbury District, Ontario. The lake tops out around 27 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 1984 (an MNRF lake survey). What the data behind the map says about each species, season by season:
On the chart, Sherlock Lake draws 301 acres inside 4.8 miles of shoreline. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 82% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 1.4 mi end to end and 0.8 mi across at its widest. You'll find it in Sudbury District. For a second option, Lincoln Lake lies 3 mi south.
Spring walleye on Sherlock Lake hold shallow, usually 4 to 15 ft. By summer they slide out to 8 to 27 ft, and by winter most fish are in 8 to 27 ft. The chart's best answer is Break off the point — drop-off, 16 ft, prime for fall. Prime time lands in the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Break off the point (16 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 27 ft | dusk & dawn | Break off the point (16 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 27 ft | dusk & night | Break off the point (16 ft) | Jigging rap, Jig + big minnow |
| Winter | 8 to 27 ft | dusk & dawn | Deep basin (23 ft) | Jigging spoon + minnow head, Rattle bait |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Summer is an 8 to 27 ft game here, winter an 8 to 27 ft one. The chart's best answer is Deep basin — deep basin, 23 ft, prime for fall. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 8 to 27 ft | dawn | Deep basin (23 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 8 to 27 ft | midday | Deep basin (23 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 8 to 27 ft | midday & dawn | Deep basin (23 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. Fall northern pike concentrate at Break off the point, a prime-rated drop-off around 16 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (16 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (16 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Sherlock Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 23 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 Sherlock Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sherlock Lake is about 27 ft (8 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1984 (an MNRF lake survey).
Anglers target walleye, yellow perch, northern pike on Sherlock Lake.
Break off the point is the top-rated area: a drop-off in about 16 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each species and season.
For walleye, the summer bite is best in the evening and 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 Sherlock 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.
Lincoln Lake 3 mi · Shenango Lake 4 mi · Lee L. 6 mi · Lincoln L. 642448 8 mi · Poison L. 9 mi · Kapuskasing Lake 10 mi · Ochik Lake 11 mi · Carty Creek 12 mi · Ossin L. 820695 12 mi · Bonar Lake 13 mi · Frog Lake 13 mi · Wakagami Lake 13 mi
See how Sherlock Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps or 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.