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Rating depth structure for rock bass.
Shared by DepthScout anglers. Exact spots stay private, always.
73-acre lake in Sudbury District, Ontario. The lake tops out around 76 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 1989 (an MNRF lake survey). What follows comes from the same scoring engine that paints the spots above.
The outline encloses 74 acres, worked by 2.9 miles of shoreline, broken up by an island. A development index of 2.4 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 69% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 0.9 mi, about 0.4 mi across. Sudbury District claims this one. If the bite dies, Dorothy Lake is 1 mi to the southwest.
Spring puts rock bass in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 5 to 20 ft; cold water stacks them in 12 to 30 ft. Secondary point is the standout, a point at roughly 3 ft, rated prime for summer rock bass. Plan around the evening in the warm months. A ned rig (small) or a marabou jig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Secondary point (3 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Secondary point (3 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Secondary point (3 ft) | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Deep basin (65 ft) | Tungsten jig + plastic, Small spoon + spike |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 65 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 Hortense Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Hortense Lake is about 76 ft (23 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1989 (an MNRF lake survey).
Anglers target rock bass on Hortense Lake.
Secondary point is the top-rated area: a point in about 3 ft of water that rates prime for rock bass in summer. The map above holds the full rated-spot list for every species and season.
For rock bass, the summer bite is best in 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 Hortense 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.
Dorothy Lake 1 mi · Wakimika Lake 3 mi · Little Fry Lake 7 mi · Linger Lake 7 mi · Bob Lake 7 mi · Seagram Lake 7 mi · Stars L. 8 mi · Fry Lake 8 mi · Yorston Lake 9 mi · Sladen Lake 40 9 mi · Diamond Lake 9 mi · Bull Lake 9 mi
See how Hortense Lake stacks up: best rock bass lakes in Ontario
More water nearby: Sudbury District fishing maps (868 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.