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.
50-acre lake in Timiskaming District, Ontario. The lake tops out around 42 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. The rest of this page walks each species through its year, using the map's own scoring.
The drawn water covers 50 acres wrapped in 1.5 miles of bank. With a 1.6 development index there's bank structure worth casting at, in moderation. The shallow band under 15 ft claims about 40% of the surface on the model — that's where the groceries are. Call it 0.6 mi long by 0.3 mi wide at the broadest reach. It sits in Timiskaming District. Big Moose Lake sits 1 mi southeast — the closest neighbouring chart.
Come spring, look for northern pike tight to the bank in 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 5 ft that scores prime in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (5 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (19 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (5 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (5 ft) | Tip-ups, Large jigging spoon |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 36 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 Costello Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Costello Lake is about 42 ft (13 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 northern pike on Costello Lake.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for northern pike in spring. Open the map above to see every rated spot for each species and season.
For northern pike, 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 Costello 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.
Big Moose Lake 1 mi · Ginn Lake 3 mi · Skead L. 4 3 mi · Ward Lake 3 mi · Skead Lake 3 mi · St. Anthony Lake 3 mi · Corset Lake 4 mi · Benson Lake 5 mi · Margaret Lake 6 mi · Raven lake 6 mi, ON/QC · Adamson Lake 6 mi · Wendigo L. 7 mi
See how Costello Lake stacks up: best northern pike lakes in Ontario
More water nearby: Timiskaming District fishing maps (515 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.