Sister Lakes Depth Map & Fishing Spots (ON)

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Lake depth chart

Sister Lakes, ON

Max 60 ft

Today's read

Where to start

Fall shiner run window is on — see the hatch outlook

Hatch outlook

Fall shiner runActive window

Typical here: Sep 1 – Oct 31 · same push on the Ontario side — Simcoe's shiners migrate shallow as the water cools, and the predators ride with them

adultdaylight for the jig bite; after dark the shiners stack under dock lights with walleyes and pike mixed right in — follow the bait, not the spot — millions of shiners move together and the predators ride with them; silver profile and flash matter

Concentrates hard but travels — the school (and the walleyes under it) can be off a river mouth one week and miles upriver the next.

Jig-and-minnow is the event's signature — a frozen emerald shiner on a 1/4 oz jig drifted along the run; silver jerkbaits and trolled crankbaits take the roaming fish; blade baits under the schools.

The event happens over river mouths and the first miles upriver, warming shallow shorelines, and rocky points where the displaced bait stacks

Next on this water

June mayfly hatch (walleye lakes) · mayflyJun 1 – Aug 10 · in ~8 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

Depth · ft

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Recent catches at Sister Lakes

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Fishing Sister Lakes: what the data says

26-acre lake in Thunder Bay District, Ontario. The lake tops out around 60 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. Every species below gets its seasonal read from the same numbers driving the chart.

On the chart, Sister Lakes draws 27 acres inside 1.1 miles of shoreline. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. The shallow band under 15 ft claims about 52% of the surface on the model — that's where the groceries are. Figure 0.4 mi of water from one end to the other, 0.2 mi at the beam. You'll find it in Thunder Bay District. For a second option, Bews Lake lies 2 mi west.

Northern Pike fishing at Sister Lakes

The spring pattern is a shallow one: northern pike in 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 6 ft of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (6 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Shallow bay flat (6 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Shallow bay flat (6 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Shallow bay flat (6 ft)	Tip-ups, Large jigging spoon

Notable structure

The chart marks 4 structure features on Sister Lakes; the deepest is Deep basin at about 51 ft.

Deep basin: deep basin, around 51 ft
Main-lake point: point, around 15 ft
Shallow bay flat: weed flat, around 6 ft
Back-bay flat: weed flat, around 6 ft

Sister Lakes fishing regulations

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 Sister Lakes specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Sister Lakes?

Sister Lakes is about 60 ft (18 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.

What fish are in Sister Lakes?

Anglers target northern pike on Sister Lakes.

Where is the best fishing spot on Sister Lakes?

Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for northern pike in spring. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Sister Lakes?

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.

What are the fishing regulations for Sister Lakes?

Fishing on Sister Lakes 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.

Nearby waters

Bews Lake 2 mi · Box Lake 3 mi · Fishnet Lake 4 mi · Eric Lake 4 mi · Diablo Lake 5 mi · Santoy Lake 6 mi · Craig Lake 6 mi · Found Lake 6 mi · Davidson Lake 7 mi · Ducell Lake 7 mi · Cairngorm Lake 9 mi · Deep Lake 12 mi

See how Sister Lakes stacks up: best northern pike 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.