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28-acre lake in Lanark County, Ontario. The lake tops out around 50 ft. The depth data here comes from the Ontario MNRF survey of 1967, a decades-old survey (a transect sounding survey). Below is the species-by-species picture, pulled from the same data the map uses.
On the chart, Bottle Lake draws 28 acres inside 1.4 miles of shoreline — one island included. Index 1.9 on the shoreline: a few honest points and pockets, nothing labyrinthine. Roughly 36% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 0.4 mi, about 0.3 mi across. You'll find it in Lanark County. For a second option, Caldwell Lake lies 1 mi northwest.
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. The spot to know is Break off the point, a drop-off in about 19 ft of water that rates prime for brook trout in summer. Warm-month bites cluster around early morning and the evening. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (11 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (19 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (11 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (19 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. Midsummer fish sit out in 3 to 12 ft before dropping to 10 to 25 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for brown bullhead in spring. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (2 ft) | |
| Summer | 3 to 12 ft | night & dusk | Back-bay flat (4 ft) | |
| Fall | 5 to 15 ft | dusk | Back-bay flat (4 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (50 ft) |
Bottle Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 50 ft down.
Access data: Land Information Ontario — Fishing Access Point. Confirm conditions and fees locally before you launch.
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 Bottle Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Bottle Lake is about 50 ft (15 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1967, a decades-old survey (a transect sounding survey).
Anglers target brook trout, brown bullhead on Bottle Lake.
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for brown bullhead in spring. 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 Bottle 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.
Caldwell Lake 1 mi · Dixon Lake 1 mi · Matthie Lake 2 mi · Graham Lake 3 mi · Robertson Lake 3 mi · Pond on the Hill 3 mi · Bowers Lake 3 mi · Paddys Lake 4 mi · Woods Lake 4 mi · Brownings Pond 4 mi · Tate Lake 4 mi · Gallagher Lake 4 mi
See how Bottle Lake stacks up: best brook trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Lanark County fishing maps (74 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.