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110-acre lake in Haliburton County, Ontario. The lake tops out around 77 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 1968, a decades-old survey (an MNRF lake survey). Here's the year, species by species, as the scoring engine sees it.
The outline encloses 112 acres, worked by 3.4 miles of shoreline. The 2.3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Littoral water — the productive band under ~15 ft — makes up 84% of this chart. Call it 0.8 mi long by 0.6 mi wide at the broadest reach. Haliburton County claims this one. If the bite dies, Clydegale Lake is 3 mi to the south.
Early season lake trout use the shallows, holding in 10 to 40 ft. Summer is a 23 to 77 ft game here, winter a 19 to 77 ft one. The chart's best answer is Deep basin — deep basin, 20 ft, prime for winter. Best bite is early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (15 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 23 to 77 ft | dawn | Deep basin (20 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (15 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 19 to 77 ft | dawn | Deep basin (20 ft) | White tube jig, Airplane jig |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 15 to 35 ft. Fall yellow perch concentrate at Deep basin, a prime-rated deep basin around 20 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| 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 | Deep basin (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring brown bullhead on Prottler Lake hold shallow, usually 2 to 8 ft. They move out to 3 to 12 ft in summer and finish the year down in 10 to 25 ft. Put Deep basin first on the milk run — a deep basin near 20 ft that grades prime for winter. The feeding windows run after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 5 to 15 ft | dusk | open water | |
| Winter | 10 to 25 ft | midday | Deep basin (20 ft) |
6 pieces of structure are mapped here — Deep basin, around 20 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 Prottler Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Prottler Lake is about 77 ft (23 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1968, a decades-old survey (an MNRF lake survey).
Anglers target lake trout, yellow perch, brown bullhead on Prottler Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for yellow perch in fall. 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 Prottler 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.
Clydegale Lake 3 mi · Aubrey Lake 3 mi · Rock Lake 4 mi · Camp Lake 4 mi · Welcome Lake 5 mi · Avery's Lake 5 mi · Galeairy Lake 5 mi · Little Cauliflower Lake 5 mi · Sylvia Lake 5 mi · Fraser Lake 5 mi · Rosepond Lake 5 mi · Cauliflower Lake 5 mi
See how Prottler Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario fishing maps or 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.