Lake depth chart
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303-acre lake in Sudbury District, Ontario. The lake tops out around 59 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 1980 (a transect sounding survey). Species by species, here's what the data says the year looks like.
Traced from the shoreline, Rose Lake runs 305 acres with 8.6 miles of edge — 7 islands included. That shoreline is heavily fingered (development index 3.5) — bays, points and pockets everywhere, which multiplies the fishable edge. Littoral water — the productive band under ~15 ft — makes up 58% of this chart. Tip to tip the water measures near 1.7 mi with a 0.8-mi widest point. The water lies in Sudbury District. Closest neighbour on DepthScout: Marie Lake, 1 mi east of here.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official Ontario MNRF Fish ON-Line record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
Spring cisco (lake herring) on Rose Lake hold shallow, usually 10 to 40 ft. By summer they slide out to 18 to 59 ft, and by winter most fish are in 18 to 59 ft. The chart's best answer is Deep basin — deep basin, 59 ft, prime for summer. Prime time lands in early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
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 | 10 to 40 ft | dawn & dusk | Break off the point (26 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 18 to 59 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (59 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (26 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 18 to 59 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (59 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
The spring pattern is a shallow one: northern pike in 2 to 8 ft. As the season builds they drop to 8 to 20 ft, wintering in 5 to 15 ft. Top water on the chart: Shallow bay flat, a weed flat in the 1 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| 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 | Shallow feeding flat (20 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow feeding flat (20 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 |
In spring, burbot run shallow here, mostly 18 to 59 ft. Summer keeps them at 18 to 59 ft, and they winter in 15 to 59 ft. Deep basin is the standout, a deep basin at roughly 59 ft, rated prime for spring burbot. Time it for after dark and midday. You won't need more than a heavy jig + cut bait most summer days.
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 | 18 to 59 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (59 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 18 to 59 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (59 ft) | Heavy jig + cut bait |
| Fall | 18 to 59 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (59 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 59 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (59 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Spring lake whitefish on Rose Lake hold shallow, usually 15 to 45 ft. By summer they slide out to 18 to 59 ft, and by winter most fish are in 18 to 59 ft. The chart's best answer is Deep basin — deep basin, 59 ft, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
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 | 15 to 45 ft | midday & dawn | Break off the point (26 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 18 to 59 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (59 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (26 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 18 to 59 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (59 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
When the water first warms, yellow perch slide up into 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. If you only fish one area, make it Break off the point: a drop-off around 26 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| 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 | 10 to 30 ft | dawn | Break off the point (26 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (26 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (26 ft) | Tungsten jig + spikes, Rattle spoon (small) |
7 pieces of structure are mapped here — Deep basin, around 59 ft, is the deepest of them.
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 Rose Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Rose Lake is about 59 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1980 (a transect sounding survey).
Anglers target cisco (lake herring), northern pike, burbot, lake whitefish, yellow perch on Rose Lake.
Deep basin is the top-rated area: a deep basin in about 59 ft of water that rates prime for cisco (lake herring) in summer. 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 Rose 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.
Marie Lake 1 mi · Kettle Lake 2 mi · Limit Lake 3 mi · Hope Lake 4 mi · Shanguish Lake 6 mi · Comox Lake 6 mi · Upper Bark Lake 6 mi · Kashbogama Lake 7 mi · Red Elk Lake 7 mi · Fraser Lake 8 mi · Upper Green Lake 8 mi · Labitiche Lake 10 mi
See how Rose Lake stacks up: best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best lake whitefish lakes in Ontario · best burbot lakes in Ontario
More water nearby: Sudbury District fishing maps (868 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.