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.
389-acre lake in Kenora District, Ontario. The lake tops out around 71 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 1985 (an MNRF lake survey). Species by species, here's what the data says the year looks like.
Drawn out, this is 390 acres of water rimmed by 5.6 miles of bank. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. 64% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 1.4 mi, about 0.9 mi across. The water lies in Kenora District. Closest neighbour on DepthScout: Troutfly Lake, 2 mi northeast of here.
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Summer pushes them deeper, 21 to 71 ft, and winter fish settle into 18 to 71 ft. The spot to know is Deep basin, a deep basin in about 59 ft of water that rates prime for lake trout in summer. Warm-month bites cluster around early morning. Throw a white tube jig (deep) or a magnum spoon on downrigger until the fish tell you otherwise.
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 (46 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 21 to 71 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (59 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (46 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 18 to 71 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (59 ft) | White tube jig, Airplane jig |
Spring yellow perch on Gardnar Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Shallow bay flat — weed flat, 1 ft, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Shallow bay flat (1 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (46 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | open water | Tungsten jig + spikes, Rattle spoon (small) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 59 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 Gardnar Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Gardnar Lake is about 71 ft (22 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1985 (an MNRF lake survey).
Anglers target lake trout, yellow perch on Gardnar Lake.
Deep basin is the top-rated area: a deep basin in about 59 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 Gardnar 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.
Troutfly Lake 2 mi · Laval Lake 2 mi · Big Sandy Lake 5 mi · Philcot Lake 6 mi · Hartman Lake 6 mi · Gullwing Lake 8 mi · Mavis Lake 8 mi · Ghost Lake 8 mi · Kathlyn Lake 8 mi · Thunder Lake 9 mi · Franciscan Lake 10 mi · Bluett Lake 10 mi
See how Gardnar Lake stacks up: best yellow perch lakes in Ontario · best lake trout 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.