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Rating depth structure for brown bullhead.
Shared by DepthScout anglers. Exact spots stay private, always.
133-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 1973, a decades-old survey (an MNRF lake survey). Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 133 acres, worked by 2.2 miles of shoreline. Its 1.4 shoreline index means few bank features; the contours below do the pattern work. 79% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 0.7 mi of water from one end to the other, 0.4 mi at the beam. Parry Sound District claims this one. If the bite dies, Kelsey Lake is 1 mi to the north.
Early season brown bullhead use the shallows, holding in 2 to 8 ft. Summer is a 3 to 12 ft game here, winter a 7 to 22 ft one. The chart's best answer is Deep basin — deep basin, 20 ft, prime for winter. Best bite is after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (2 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (2 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (2 ft) | |
| Winter | 7 to 22 ft | midday | Deep basin (20 ft) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 20 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 Larson Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Larson Lake is about 22 ft (7 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1973, a decades-old survey (an MNRF lake survey).
Anglers target brown bullhead on Larson Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for brown bullhead in winter. Every other rated spot, per species and season, is on the map above.
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 Larson 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.
Kelsey Lake 1 mi · Kernick Lake 3 mi · Mason Lake 3 mi · Three Mile Lake 3 mi · Jacks Lake 3 mi · Tea Lake 3 mi · Pickerel Lake 4 mi · Deer Lake 4 mi · Owl Lake 4 mi · Loon Lake 4 mi · Himbury Lake 5 mi · Island Lake 5 mi
See how Larson Lake 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.