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89-acre lake in Nipissing District, Ontario. The lake tops out around 100 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. Here is how the season plays out for each species, straight from the data behind the map.
On the chart, Sisco Lake draws 89 acres inside 1.7 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. About 13% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 0.5 mi end to end and 0.4 mi across at its widest. You'll find it in Nipissing District. Closest neighbour on DepthScout: Lost Dog Lake, 1 mi southwest of here.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Midsummer fish sit out in 30 to 100 ft before dropping to 20 to 80 ft for winter. Summer lake trout concentrate at Deep basin, a prime-rated deep basin around 99 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 | Main-lake point (33 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 30 to 100 ft | dawn | Deep basin (99 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (33 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (69 ft) | White tube jig, Airplane jig |
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 15 to 35 ft one. Start at Back-bay flat. It's a feeding flat holding about 8 ft of water and rates prime come spring. The feeding windows run 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 | Back-bay flat (8 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Shallow bay flat (15 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (99 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Shallow bay flat (15 ft) | Tungsten jig + spikes, Rattle spoon (small) |
6 pieces of structure are mapped here — Deep basin, around 99 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 Sisco Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sisco Lake is about 100 ft (30 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target lake trout, yellow perch on Sisco Lake.
Deep basin is the top-rated area: a deep basin in about 99 ft of water that rates prime for lake trout in summer. Scroll up to the map for the complete spot list by 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 Sisco 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.
Lost Dog Lake 1 mi · Lorne Lake 1 mi · Kakasamic Lake 2 mi · North Tea Lake 3 mi · Mattowacka Lake 3 mi · Holts L. 3 mi · Keewaydin Lake 3 mi · Pat Lake 4 mi · Fassett Lake 4 mi · Kuwasda Lake 4 mi · Edwards Lake 4 mi · Pishnecka Lake 5 mi
See how Sisco Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario
More water nearby: Nipissing District fishing maps (683 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.