Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Recent public catches load as you reach this section.
380-acre lake in Peterborough County, Ontario. The lake tops out around 60 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 1969, a decades-old survey (a transect sounding survey). Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 382 acres of water rimmed by 7.2 miles of bank, with 4 islands in the mix. An index of 2.6 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 37% of this chart. End to end it runs roughly 1.5 mi, about 1 mi across. The water lies in Peterborough County. Closest neighbour on DepthScout: Bottle Lake, 1 mi west 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.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Summer pushes them deeper, 18 to 60 ft, and winter fish settle into 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 60 ft, rated prime for summer lake trout. Time it for early morning. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger 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 | 10 to 40 ft | dawn & dusk | Break off the point (45 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 18 to 60 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (60 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (45 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 15 to 60 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (60 ft) | White tube jig, Airplane jig |
The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. As the season builds they drop to 10 to 30 ft, wintering in 20 to 45 ft. Top water on the chart: Break off the point, a drop-off in the 45 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| 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 | 10 to 30 ft | dawn & dusk | Main-lake point (1 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (1 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (45 ft) | Blade bait, Hair jig |
The chart marks 6 structure features on Sucker Lake; the deepest is Deep basin at about 60 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 Sucker Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sucker Lake is about 60 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1969, a decades-old survey (a transect sounding survey).
Anglers target lake trout, smallmouth bass on Sucker Lake.
Deep basin is the top-rated area: a deep basin in about 60 ft of water that rates prime for lake trout in summer. The interactive chart above rates every spot for each species and season.
For lake trout, 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 Sucker 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.
Bottle Lake 1 mi · Fagan Lake 1 mi · Beaver Lake 2 mi · Cavendish Lake 2 mi · Anstruther Lake 2 mi · Rathbun Lake 3 mi · North Rathbun Lake 3 mi · Gold Lake 3 mi · Catchacoma Narrows 3 mi · Cathchacoma Lake 3 mi · Wolf Lake 4 mi · Copper Lake 4 mi
See how Sucker Lake stacks up: best smallmouth bass lakes in Ontario · best lake trout lakes in Ontario
More water nearby: Peterborough County fishing maps (83 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.