Lake depth chart
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105-acre lake in Sudbury District, Ontario. The lake tops out around 120 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 105 acres wrapped in 3.1 miles of bank. A middling shoreline index (2.1) gives it some bays to work without being a maze. 37% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. End to end it runs roughly 1 mi, about 0.4 mi across. It sits in Sudbury District. If the bite dies, Tenho Lake is 1 mi to the southwest.
When the water first warms, brook trout slide up into 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores good in spring. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | open water | 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 | Shallow bay flat (6 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring splake on Pomfrey Lake hold shallow, usually 5 to 25 ft. By summer they slide out to 25 to 60 ft, and by winter most fish are in 10 to 45 ft. The chart's best answer is Break off the point — drop-off, 54 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with a trolled spoon at the thermocline or a white tube jig (deep).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Main-lake point (30 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 25 to 60 ft | dawn & dusk | Break off the point (54 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (30 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Break off the point (54 ft) | Jigging spoon tipped with minnow head, Small white tube |
Spring puts cisco (lake herring) in skinny water — 10 to 40 ft is the zone. As the season builds they drop to 40 to 80 ft, wintering in 20 to 60 ft. Winter cisco (lake herring) concentrate at Break off the point, a prime-rated drop-off around 54 ft. Warm-month bites cluster around early morning. A vertical flutter spoon (small) or a drop-shot micro plastic covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Deep basin (102 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Break off the point (54 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Break off the point (54 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 102 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 Pomfrey Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Pomfrey Lake is about 120 ft (37 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, splake, cisco (lake herring) on Pomfrey Lake.
Break off the point is the top-rated area: a drop-off in about 54 ft of water that rates prime for splake 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 Pomfrey 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.
Tenho Lake 1 mi · Wabagishik Lake 2 mi · Rock Lake 3 mi · Nairn L. 28 3 mi · Nameless Lake 3 mi · Arts L. 4 mi · Jiggy Lake 4 mi · Augusta Lake 4 mi · Elizabeth Lake 4 mi · Lake of the Mountains 4 mi · Brazil Lake 5 mi · Ella Lake 5 mi
See how Pomfrey Lake stacks up: best brook trout lakes in Ontario · best cisco (lake herring) lakes in Ontario · best splake lakes in Ontario
More water nearby: Sudbury District fishing maps (868 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.