Twin Lakes Depth Map & Fishing Spots (Cochrane District, ON)

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Lake depth chart

Twin Lakes, ON

Max 50 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

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

June mayfly hatch (walleye lakes) · mayflyJun 1 – Aug 10 · in ~9 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.

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Recent catches at Twin Lakes

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Twin Lakes on the board.

Fishing Twin Lakes: what the data says

22-acre lake in Cochrane District, Ontario. The lake tops out around 50 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. The rest of this page walks each species through its year, using the map's own scoring.

The outline encloses 21 acres, worked by 0.9 miles of shoreline. A shoreline index of 1.4 says round and simple: fish relate to depth changes here, not shoreline features. The shallow band under 15 ft claims about 27% of the surface on the model — that's where the groceries are. End to end it runs roughly 0.4 mi, about 0.2 mi across. It sits in Cochrane District. If the bite dies, Jean Lake is 5 mi to the east.

Yellow Perch fishing at Twin Lakes

Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 10 to 30 ft; cold water stacks them in 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated prime for spring yellow perch. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.

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 (23 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	12 to 35 ft	midday	Break off the point (23 ft)	Jigging spoon (small), Perch rig / spreader
Winter	15 to 35 ft	midday & dawn	Break off the point (23 ft)	Tungsten jig + spikes, Rattle spoon (small)

Notable structure

Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 43 ft.

Deep basin: deep basin, around 43 ft
Break off the point: drop-off, around 23 ft
Main-lake point: point, around 13 ft
Shallow bay flat: weed flat, around 6 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Twin Lakes?

Twin Lakes is about 50 ft (15 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 Twin Lakes?

Anglers target yellow perch on Twin Lakes.

Where is the best fishing spot on Twin Lakes?

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. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Twin Lakes?

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.

What are the fishing regulations for Twin Lakes?

Fishing on Twin 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

Jean Lake 5 mi · Moose Lake 6 mi · McMillan Lake 7 mi · Froude Lake 8 mi · Reid Lake 8 mi · Andrew Lake 8 mi · Sheraton Lake 9 mi · Cherry Lake 9 mi · De Courcey Lake 10 mi · Grenier Lake 10 mi · Little Club Lake 10 mi · Homestead Lake 10 mi

See how Twin Lakes stacks up: best yellow perch lakes in Ontario

More water nearby: Cochrane District fishing maps (673 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.