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1,585-acre lake in Kenora District, Ontario. The lake tops out around 26 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 an MNRF lake survey by the Ontario MNRF. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 1,592 acres, worked by 14.5 miles of shoreline — 11 islands included. The 2.6 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 67% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. End to end it runs roughly 3.1 mi, about 1.4 mi across. It sits in Kenora District. Turtlepond Lake sits 1 mi west — the closest neighbouring chart.
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.
In spring, walleye run shallow here, mostly 4 to 15 ft. Midsummer fish sit out in 8 to 26 ft before dropping to 8 to 26 ft for winter. Fall walleye concentrate at Break off the point, a prime-rated drop-off around 16 ft. Fish it in the evening and early morning and you'll meet the bite. You won't need more than a crawler harness on bottom bouncer or a deep crankbait (trolled) 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 | 4 to 15 ft | dusk & dawn | Break off the point (16 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 26 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (16 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 26 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (16 ft) | Jigging rap, Jig + big minnow |
| Winter | 8 to 26 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (26 ft) | Jigging spoon + minnow head, Rattle bait |
When the water first warms, northern pike slide up into 2 to 8 ft. Summer is an 8 to 20 ft game here, winter a 5 to 15 ft one. Start at Break off the point. It's a drop-off holding about 16 ft of water and rates prime come fall. The feeding windows run early morning and the evening. Keep a bucktail or a weedless spoon over cabbage rigged through the warm months.
| 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 |
When the water first warms, smallmouth bass slide up into 3 to 12 ft. Summer is an 8 to 26 ft game here, winter an 8 to 26 ft one. Start at Break off the point. It's a drop-off holding about 16 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a drop shot (goby/minnow) or a ned rig 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 | 3 to 12 ft | dawn & dusk | Main-lake point (1 ft) | Ned rig, Tube jig |
| Summer | 8 to 26 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (16 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Break off the point (16 ft) | Jerkbait, Blade bait |
| Winter | 8 to 26 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (16 ft) | Blade bait, Hair jig |
Start shallow in spring: cisco (lake herring) sit in 7 to 26 ft that time of year. They don't go far with the seasons — 8 to 26 ft covers summer, 8 to 26 ft covers winter. The spot to know is Deep basin, a deep basin in about 26 ft of water that rates prime for cisco (lake herring) in spring. Warm-month bites cluster around early morning. Throw a vertical flutter spoon (small) or a drop-shot micro plastic until the fish tell you otherwise.
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 | 7 to 26 ft chart-limited; documented 10 to 40 ft | dawn & dusk | Deep basin (26 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 8 to 26 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (26 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (16 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 8 to 26 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (26 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
When the water first warms, crappie slide up into 2 to 8 ft. Summer is a 10 to 25 ft game here, winter an 8 to 26 ft one. Start at Deep basin. It's a deep basin holding about 26 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a jig trolled/spider-rigged or a small crankbait (trolled) 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 8 ft | midday & dawn | Shallow bay flat (1 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (16 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (16 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 8 to 26 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (26 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Start shallow in spring: rock bass sit in 2 to 10 ft that time of year. Summer pushes them deeper, 5 to 20 ft, and winter fish settle into 8 to 26 ft. The spot to know is Break off the point, a drop-off in about 16 ft of water that rates prime for rock bass in fall. Warm-month bites cluster around the evening. Throw a ned rig (small) or a marabou jig until the fish tell you otherwise.
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 10 ft | midday & dawn | Main-lake point (1 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Break off the point (16 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Break off the point (16 ft) | Small tube jig, Inline spinner |
| Winter | 8 to 26 ft chart-limited; documented 12 to 30 ft | midday | Deep basin (26 ft) | Tungsten jig + plastic, Small spoon + spike |
Rock Lake also holds sauger (8 to 26 ft in summer), yellow perch (8 to 26 ft in summer). Pick any of them on the map above for rated spots and bait picks.
The chart marks 7 structure features on Rock Lake; the deepest is Deep basin at about 26 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 Rock Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Rock Lake is about 26 ft (8 m) deep at its deepest point. The depth data here comes from an MNRF lake survey by the Ontario MNRF.
Anglers target walleye, northern pike, smallmouth bass, cisco (lake herring), crappie, rock bass, sauger, yellow perch on Rock 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 Rock 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.
Turtlepond Lake 1 mi · Whitewater Lake 2 mi · Lost Lake 2 mi · Minnehaha Lake 3 mi · Peak Lake 3 mi · Snowfall Lake 5 mi · Gabbro Lake 5 mi · Summit Lake 5 mi · Walmsley Lake 6 mi · Dinorwic Lake 6 mi · Paulson Lake 6 mi · Pincher Lake 6 mi
See how Rock Lake stacks up: best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best sauger lakes in Ontario · best northern pike lakes in Ontario
More water nearby: Kenora District fishing maps (1173 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.