Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Recent public catches load as you reach this section.
16-acre lake in Renfrew County, Ontario. The lake tops out around 21 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 1971, a decades-old survey (a transect sounding survey). Here's the year, species by species, as the scoring engine sees it.
Owl Lake maps at 16 acres behind 0.7 miles of shoreline. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. End to end it runs roughly 0.3 mi. Renfrew County claims this one. Its nearest charted neighbour, Marys Lake, is 1 mi to the southeast.
Spring brook trout on Owl Lake hold shallow, usually 2 to 15 ft. They move out to 6 to 21 ft in summer and finish the year down in 3 to 20 ft. Put Deep basin first on the milk run — a deep basin near 10 ft that grades prime for summer. The feeding windows run early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 21 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (10 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (10 ft) | Small jigging spoon, Tungsten jig + plastic |
Come spring, look for smallmouth bass tight to the bank in 3 to 12 ft. Expect a summer slide to 6 to 21 ft, then a winter hold in 6 to 21 ft. Start at Shoreline break. It's a drop-off holding about 4 ft of water and rates prime come winter. Prime time lands in early morning and the evening. A drop shot (goby/minnow) or a ned rig is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | open water | Ned rig, Tube jig |
| Summer | 6 to 21 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Shoreline break (4 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 6 to 21 ft chart-limited; documented 8 to 25 ft | midday & dawn | Shoreline break (4 ft) | Jerkbait, Blade bait |
| Winter | 6 to 21 ft chart-limited; documented 20 to 45 ft | midday | Shoreline break (4 ft) | Blade bait, Hair jig |
4 pieces of structure are mapped here — Deep basin, around 10 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 Owl Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Owl Lake is about 21 ft (6 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (a transect sounding survey).
Anglers target brook trout, smallmouth bass on Owl Lake.
Shoreline break is the top-rated area: a drop-off in about 4 ft of water that rates prime for smallmouth bass in winter. The interactive chart above rates every spot for each species and season.
For brook trout, the summer bite is best in early morning 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 Owl 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.
Marys Lake 1 mi · Pooh Lake 2 mi · Eeyore Lake 2 mi · Tigger Lake 3 mi · Piglet Lake 3 mi · Sweezy Lake 3 mi · Puffball Lake 3 mi · Christopher Robin Lake 4 mi · McKenna Lake 4 mi · McSourley Lake 4 mi · Oval Lake 4 mi · Adelard Lake 4 mi
See how Owl Lake stacks up: best smallmouth bass lakes in Ontario · best brook trout lakes in Ontario
More water nearby: Renfrew County fishing maps (298 charts). Browse all Ontario fishing maps. 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.