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45-acre lake in Parry Sound District, Ontario. The lake tops out around 38 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 1976, a decades-old survey (an MNRF lake survey). Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 46 acres of water rimmed by 1.6 miles of bank. Index 1.6 on the shoreline: a few honest points and pockets, nothing labyrinthine. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout. End to end it runs roughly 0.5 mi, about 0.3 mi across. The water lies in Parry Sound District. For a second option, Wolf Lake lies 1 mi west.
When the water first warms, cisco (lake herring) slide up into 10 to 38 ft. There's no big seasonal slide here — summer means 11 to 38 ft, winter 11 to 38 ft. If you only fish one area, make it Deep basin: a deep basin around 29 ft that scores prime in spring. In summer the feeding windows fall in early morning. Keep a vertical flutter spoon (small) or a drop-shot micro plastic rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 38 ft | dawn & dusk | Deep basin (29 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 11 to 38 ft | dawn | Deep basin (29 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (2 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 11 to 38 ft | dawn | Deep basin (29 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring yellow perch on Brophy L. hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Deep basin — deep basin, 29 ft, prime for fall. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | open water | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (29 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (29 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (29 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, pumpkinseed slide up into 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 6 to 18 ft. In summer the feeding windows fall in the evening and early morning. Keep a micro tube or a sponge spider (fly) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | open water | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | open water | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | open water | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | open water | Tungsten ice jig + plastic, Tiny spoon |
The chart marks 4 structure features on Brophy L.; the deepest is Deep basin at about 29 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 Brophy L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Brophy L. is about 38 ft (12 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1976, a decades-old survey (an MNRF lake survey).
Anglers target cisco (lake herring), yellow perch, pumpkinseed on Brophy L..
Deep basin is the top-rated area: a deep basin in about 29 ft of water that rates prime for cisco (lake herring) in spring. Scroll up to the map for the complete spot list by species and season.
For cisco (lake herring), 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 Brophy L. 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.
Wolf Lake 1 mi · Bell Lake 3 mi · Round Lake 3 mi · Nine Mile Lake 3 mi · Wallace Lake 4 mi · Bat Lake 4 mi · Loch Erne 4 mi · Partridge Lake 4 mi · Redfern Lake 5 mi · Phil's Lake 5 mi · Harris Lake 5 mi · Vowel Lake 5 mi
See how Brophy L. stacks up: best yellow perch lakes in Ontario · best cisco (lake herring) lakes in Ontario · best pumpkinseed lakes in Ontario
More water nearby: Parry Sound District fishing maps (441 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.