Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Shared by DepthScout anglers. Exact spots stay private, always.
19-acre lake in Sudbury District, Ontario. The lake tops out around 25 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. Here's the year, species by species, as the scoring engine sees it.
The drawn water covers 18 acres wrapped in 0.9 miles of bank. With a 1.5 development index there's bank structure worth casting at, in moderation. 94% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 0.3 mi, about 0.2 mi across. Sudbury District claims this one. If the bite dies, Flyline Lake is 0 mi to the east.
Spring brook trout on Harvey L. hold shallow, usually 2 to 15 ft. They move out to 8 to 25 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 20 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.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 8 to 25 ft | dawn & dusk | Deep basin (20 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Summer is a 7 to 25 ft game here, winter a 5 to 25 ft one. The chart's best answer is Deep basin — deep basin, 20 ft, prime for winter. Best bite is early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (2 ft) | Inline spinner (silver), Small spoon |
| Summer | 7 to 25 ft | dawn & dusk | Deep basin (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 7 to 25 ft | dawn & dusk | Deep basin (20 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 5 to 25 ft | dawn | Deep basin (20 ft) | Jigging spoon, Tube jig (white) |
The chart marks 4 structure features on Harvey L.; the deepest is Deep basin at about 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 Harvey L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Harvey L. is about 25 ft (8 m) deep at its deepest point. 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.
Anglers target brook trout, rainbow trout on Harvey L..
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for brook trout in summer. Scroll up to the map for the complete spot list by 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 Harvey 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.
Flyline Lake 0 mi · Marylyn Lake 1 mi · De Gaulle L. 16 1 mi · Tony Lake 2 mi · Pat L. 3 mi · Little Wenebegon Lake 3 mi · Mike L. 3 mi · Nimitz L. 15 4 mi · Unit Lake 5 mi · Elmer L. 5 mi · Stripcut L. 6 mi · Hamilton Lake 6 mi
See how Harvey L. stacks up: best rainbow trout lakes in Ontario · best brook trout 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.