Duff L. 1 Depth Map & Fishing Spots (ON)

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Lake depth chart

Duff L. 1, ON

Max 50 ft

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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 ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

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Recent catches at Duff L. 1

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 Duff L. 1 on the board.

Fishing Duff L. 1: what the data says

15-acre lake in Cochrane District, Ontario. The lake tops out around 50 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. What follows comes from the same scoring engine that paints the spots above.

The drawn water covers 15 acres wrapped in 0.9 miles of bank. With a 1.7 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 76% of this chart. Tip to tip the water measures near 0.3 mi with a 0.2-mi widest point. Cochrane District claims this one. Pallet L. sits 0 mi west — the closest neighbouring chart.

Northern Pike fishing at Duff L. 1

When the water first warms, northern pike slide up into 2 to 8 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. If you only fish one area, make it Break off the point: a drop-off around 10 ft that scores prime in fall. In summer the feeding windows fall in early morning and the evening. Keep a bucktail or a weedless spoon over cabbage rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	open water	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Break off the point (10 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Break off the point (10 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Break off the point (10 ft)	Tip-ups, Large jigging spoon

Notable structure

Duff L. 1 carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 41 ft down.

Deep basin: deep basin, around 41 ft
Break off the point: drop-off, around 10 ft
Main-lake point: point, around 4 ft

Public access & boat ramps

Boat launch — ramp

Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.

Duff L. 1 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 Duff L. 1 specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Duff L. 1?

Duff L. 1 is about 50 ft (15 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.

What fish are in Duff L. 1?

Anglers target northern pike on Duff L. 1.

Where is the best fishing spot on Duff L. 1?

Break off the point is the top-rated area: a drop-off in about 10 ft of water that rates prime for northern pike in fall. The interactive chart above rates every spot for each species and season.

When is the best time to fish Duff L. 1?

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 Duff L. 1?

Fishing on Duff L. 1 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

Pallet L. 0 mi · Duff L. 2 1 mi · Crawfish Lake 1 mi · Jawbone L. 1 mi · Emerald L. 2 mi · Verte L. 3 mi · Paddy L. 3 mi · Pickerel Lake 3 mi · Reaume Lake 4 mi · Little Lake 1 4 mi · Little L. 3 4 mi · Little L. 4 4 mi

See how Duff L. 1 stacks up: best northern pike lakes in Ontario

More water nearby: Cochrane District fishing maps (673 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.