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88-acre lake in Parry Sound District, Ontario. The lake tops out around 10 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Every species below gets its seasonal read from the same numbers driving the chart.
The drawn water covers 87 acres wrapped in 1.8 miles of bank. The basin is a simple one (shoreline index 1.4) — close to a bowl, so the structure on the chart matters more than the bank. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. Call it 0.5 mi long by 0.5 mi wide at the broadest reach. It sits in Parry Sound District. Its nearest charted neighbour, Keiller Lake, is 2 mi to the southwest.
Start shallow in spring: yellow perch sit in 3 to 10 ft that time of year. They don't go far with the seasons — 3 to 10 ft covers summer, 3 to 10 ft covers winter. Top water on the chart: Shallow bay flat, a weed flat in the 3 ft range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a drop-shot micro plastics or a small spoon tipped with worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 10 ft | dawn | Deep basin (9 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 10 ft | midday | Deep basin (9 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 10 ft | midday & dawn | Deep basin (9 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, brown bullhead slide up into 2 to 8 ft. By summer they slide out to 3 to 10 ft, and by winter most fish are in 3 to 10 ft. If you only fish one area, make it Deep basin: a deep basin around 9 ft that scores prime in winter. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (3 ft) | |
| Summer | 3 to 10 ft | night & dusk | Shallow bay flat (3 ft) | |
| Fall | 3 to 10 ft | dusk | Deep basin (9 ft) | |
| Winter | 3 to 10 ft | midday | Deep basin (9 ft) |
The chart marks 6 structure features on Harrison Lake; the deepest is Deep basin at about 9 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 Harrison Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Harrison Lake is about 10 ft (3 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target yellow perch, brown bullhead on Harrison Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Scroll up to the map for the complete spot list by 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 Harrison 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.
Keiller Lake 2 mi · Spence Lake 4 mi · Rainy Lake 4 mi · Old Mans Lake 5 mi · Seguin Lake 6 mi · Lake Cecebe 6 mi · Bells Lake 6 mi · Newell Lake 7 mi · Simmons Lake 7 mi · Doe Lake 7 mi · Henry Lake 8 mi · Carmen Lake 8 mi
See how Harrison Lake stacks up: best yellow perch lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Parry Sound District fishing maps (441 charts). Browse all Ontario fishing maps or see every water on DepthScout. 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.