Bob Lake Depth Map & Fishing Spots (Nipissing District, ON)

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Bob Lake, ON

Max 66 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 Bob Lake

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 Bob Lake on the board.

Fishing Bob Lake: what the data says

348-acre lake in Nipissing District, Ontario. The lake tops out around 66 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. The depth data here comes from the Ontario MNRF survey of 1977, a decades-old survey (an MNRF lake survey). Species by species, here's what the data says the year looks like.

Bob Lake maps at 348 acres behind 8 miles of shoreline. A development index of 3.1 means a maze of bays and points: far more casting targets than a round bowl of the same size. 78% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 2.5 mi of water from one end to the other, 0.9 mi at the beam. Nipissing District claims this one. Its nearest charted neighbour, Diamond Lake, is 3 mi to the north.

Northern Pike fishing at Bob Lake

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 15 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	Shallow bay flat (1 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Break off the point (15 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Break off the point (15 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Break off the point (15 ft)	Tip-ups, Large jigging spoon

Notable structure

Bob Lake carries 7 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 59 ft down.

Deep basin: deep basin, around 59 ft
Shallow feeding flat: feeding flat, around 19 ft
Break off the point: drop-off, around 15 ft
Main-lake point: point, around 1 ft
Secondary point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft

Bob Lake 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 Bob Lake specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Bob Lake?

Bob Lake is about 66 ft (20 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1977, a decades-old survey (an MNRF lake survey).

What fish are in Bob Lake?

Anglers target northern pike on Bob Lake.

Where is the best fishing spot on Bob Lake?

Break off the point is the top-rated area: a drop-off in about 15 ft of water that rates prime for northern pike in fall. Open the map above to see every rated spot for each species and season.

When is the best time to fish Bob Lake?

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 Bob Lake?

Fishing on Bob 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.

Nearby waters

Diamond Lake 3 mi · Wakimika Lake 4 mi · Stars L. 6 mi · Sladen Lake 40 6 mi · Walsh Lake 6 mi · Hortense Lake 7 mi · Willow Island Lake 7 mi · Sirdevan Lake 7 mi · Dorothy Lake 8 mi · Little Fry Lake 8 mi · Barmac Lake 8 mi · Medina L. 932 8 mi

See how Bob Lake stacks up: best northern pike lakes in Ontario

More water nearby: Nipissing District fishing maps (683 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.