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150-acre lake in Kenora District, Ontario. The lake tops out around 11 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 1986 (an MNRF lake survey). The rest of this page walks each species through its year, using the map's own scoring.
Traced from the shoreline, Jack Lake runs 151 acres with 3.9 miles of edge. The 2.2 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. End to end it runs roughly 1.2 mi, about 0.4 mi across. You'll find it in Kenora District. For a second option, Jill Lake lies 1 mi south.
Spring yellow perch on Jack Lake hold shallow, usually 3 to 11 ft. Depth-wise the year is flat: 3 to 11 ft in summer, 3 to 11 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 7 ft that grades prime for fall. The feeding windows run early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
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 11 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 11 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (7 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 11 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (7 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 11 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (7 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts northern pike in skinny water — 2 to 8 ft is the zone. Warm water sends them out to 3 to 11 ft; cold water stacks them in 3 to 11 ft. Shallow bay flat is the standout, a weed flat at roughly 1 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. A bucktail or a weedless spoon over cabbage covers the summer program.
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) | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 11 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (1 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 11 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (1 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 11 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
The chart marks 6 structure features on Jack Lake; the deepest is Deep basin at about 7 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 Jack Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Jack Lake is about 11 ft (3 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1986 (an MNRF lake survey).
Anglers target yellow perch, northern pike on Jack Lake.
Deep basin is the top-rated area: a deep basin in about 7 ft of water that rates prime for yellow perch in fall. Open the map above to see every rated spot for each species and season.
For yellow perch, 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 Jack 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.
Jill Lake 1 mi · Hat Lake 5 mi · Rowdy Lake 5 mi · Wyder Lake 9 mi · Pineneedle Lake 9 mi · Sydney Lake 10 mi · Conifer Lake 14 mi · Sidious L. 15 mi · Dowswell Lake 18 mi · Longlegged Lake 18 mi · Al's L. 21 mi · Unexpected Lake 21 mi
See how Jack Lake stacks up: best northern pike lakes in Ontario · best yellow perch 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.