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Rating depth structure for brown bullhead.
Recent public catches load as you reach this section.
9-acre lake in Parry Sound District, Ontario. The lake tops out around 22 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 1974, a decades-old survey (an MNRF lake survey). Here is how the season plays out for each species, straight from the data behind the map.
The outline encloses 9 acres, worked by 0.5 miles of shoreline. Its 1.1 shoreline index means few bank features; the contours below do the pattern work. It sits in Parry Sound District. Its nearest charted neighbour, Round Lake, is 3 mi to the east.
Come spring, look for brown bullhead tight to the bank in 2 to 8 ft. Expect a summer slide to 3 to 12 ft, then a winter hold in 7 to 22 ft. Start at Deep basin. It's a deep basin holding about 10 ft of water and rates prime come winter. Prime time lands in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | open water | |
| Summer | 3 to 12 ft | night & dusk | Deep basin (10 ft) | |
| Fall | 5 to 15 ft | dusk | Deep basin (10 ft) | |
| Winter | 7 to 22 ft | midday | Deep basin (10 ft) |
Johnson L. carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 10 ft down.
Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.
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 Johnson L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Johnson L. is about 22 ft (7 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1974, a decades-old survey (an MNRF lake survey).
Anglers target brown bullhead on Johnson L..
Deep basin is the top-rated area: a deep basin in about 10 ft of water that rates prime for brown bullhead in winter. Open the map above to see every rated spot for each species and season.
For brown bullhead, the summer bite is best in after dark and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Johnson L. 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.
Round Lake 3 mi · Tabor Lake 3 mi · Buck Lake 4 mi · Compass Lake 4 mi · Rainy Lake 5 mi · Penuel Lake 5 mi · Axe Lake 5 mi · Stanzel Lake 5 mi · Yearleys P. 3 6 mi · Doe Lake 6 mi · Bear Lake 6 mi · Fox Lake 8 mi
See how Johnson L. stacks up: 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. 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.