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45-acre lake in Peterborough County, Ontario. The lake tops out around 50 ft. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Little Anstruther Lake runs 45 acres with 2.2 miles of edge — one island included. The 2.3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 40% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 0.8 mi of water from one end to the other, 0.2 mi at the beam. You'll find it in Peterborough County. For a second option, Clanricarde Lake lies 1 mi north.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Midsummer fish sit out in 15 to 50 ft before dropping to 13 to 50 ft for winter. Summer lake trout concentrate at Deep basin, a prime-rated deep basin around 48 ft. Fish it in early morning and you'll meet the bite. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Secondary point (11 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 15 to 50 ft | dawn | Deep basin (48 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Secondary point (11 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 13 to 50 ft | dawn | Deep basin (48 ft) | White tube jig, Airplane jig |
The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 20 to 45 ft for winter. The spot to know is Secondary point, a point in about 11 ft of water that rates prime for smallmouth bass in fall. Plan around early morning and the evening in the warm months. 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 (6 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (19 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Secondary point (11 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (19 ft) | Blade bait, Hair jig |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 48 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 Little Anstruther Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Little Anstruther Lake is about 50 ft (15 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (a transect sounding survey).
Anglers target lake trout, smallmouth bass on Little Anstruther Lake.
Deep basin is the top-rated area: a deep basin in about 48 ft of water that rates prime for lake trout in summer. Open the map above to see every rated 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 Little Anstruther 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.
Clanricarde Lake 1 mi · Anderson Lake 2 mi · Serpentine Lake 2 mi · Copper Lake 3 mi · North Rathbun Lake 4 mi · Rathbun Lake 4 mi · Eels Lake 5 mi · Fagan Lake 6 mi · Loon Call Lake 6 mi · Anstruther Lake 6 mi · Wolf Lake 6 mi · Sucker Lake 6 mi
See how Little Anstruther 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 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.