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.
55-acre lake in Thunder Bay District, Ontario. The lake tops out around 72 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Timmus Lake runs 55 acres with 1.3 miles of edge. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. The shallow band under 15 ft claims about 33% of the surface on the model — that's where the groceries are. The basin spans about 0.5 mi end to end and 0.3 mi across at its widest. The water lies in Thunder Bay District. The nearest mapped water is Whitelily Lake, 1 mi to the south.
Come spring, look for yellow perch tight to the bank in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 15 to 35 ft. Start at Shallow bay flat. It's a weed flat holding about 6 ft of water and rates prime come spring. Prime time lands in early morning. A drop-shot micro plastics or a small spoon tipped with worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (32 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (32 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (32 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 61 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 Timmus Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Timmus Lake is about 72 ft (22 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 yellow perch on Timmus Lake.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for yellow perch in spring. Scroll up to the map for the complete spot list by species and season.
For yellow perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Timmus 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.
Whitelily Lake 1 mi · Beaverlodge Lake 2 mi · Walkinshaw Lake 3 mi · Magone Lake 4 mi · Penassen Lakes 6 mi · Barnum Lake 7 mi · Golding Lake 8 mi · Warnica Lake 9 mi · Greenpike Lake 9 mi · Hicks Lake 10 mi · Halfway Lake 11 mi · Mary Lake 11 mi
See how Timmus Lake stacks up: best yellow perch lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. 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.