Round Lake Depth Map & Fishing Spots (Parry Sound District, ON)

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Lake depth chart

Round Lake, ON

Max 19 ft

Today's read

Where to start

Hopper & ant season (windward banks) window is on — see the hatch outlook

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

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 Round 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 Round Lake on the board.

Fishing Round Lake: what the data says

47-acre lake in Parry Sound District, Ontario. The lake tops out around 19 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 drawn water covers 47 acres wrapped in 1.4 miles of bank. Nearly circular (index 1.4), so the story is the bottom, not the bank. The shallow band under 15 ft claims about 71% of the surface on the model — that's where the groceries are. Figure 0.5 mi of water from one end to the other, 0.3 mi at the beam. It sits in Parry Sound District. Its nearest charted neighbour, Slush Lake, is 0 mi to the northwest.

Northern Pike fishing at Round Lake

Early season northern pike use the shallows, holding in 2 to 8 ft. Summer is a 6 to 19 ft game here, winter a 5 to 15 ft one. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (3 ft)	#5 inline spinner, Spoon (red/white)
Summer	6 to 19 ft	dawn & dusk	Break off the point (9 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Break off the point (9 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Shallow bay flat (3 ft)	Tip-ups, Large jigging spoon

Smallmouth Bass fishing at Round Lake

Early season smallmouth bass use the shallows, holding in 3 to 12 ft. Summer is a 6 to 19 ft game here, winter a 6 to 19 ft one. The chart's best answer is Main-lake point — point, 8 ft, prime for fall. Best bite is early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	dawn & dusk	Main-lake point (8 ft)	Ned rig, Tube jig
Summer	6 to 19 ft	dawn & dusk	Break off the point (9 ft)	Drop shot (goby/minnow), Ned rig
Fall	6 to 19 ft	midday & dawn	Main-lake point (8 ft)	Jerkbait, Blade bait
Winter	6 to 19 ft	midday	Break off the point (9 ft)	Blade bait, Hair jig

Largemouth Bass fishing at Round Lake

Spring largemouth bass on Round Lake hold shallow, usually 2 to 10 ft. They move out to 6 to 19 ft in summer and finish the year down in 6 to 19 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a texas-rigged 10" worm or a deep-diving crankbait.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Shallow bay flat (3 ft)	Spinnerbait, Chatterbait
Summer	6 to 19 ft	dawn & dusk	Break off the point (9 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Main-lake point (8 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	6 to 19 ft	midday	Break off the point (9 ft)	Blade bait, Jigging spoon

Notable structure

The chart marks 5 structure features on Round Lake; the deepest is Deep basin at about 16 ft.

Deep basin: deep basin, around 16 ft
Break off the point: drop-off, around 9 ft
Main-lake point: point, around 8 ft
Secondary point: point, around 8 ft
Shallow bay flat: weed flat, around 3 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Round Lake?

Round Lake is about 19 ft (6 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 Round Lake?

Anglers target northern pike, smallmouth bass, largemouth bass on Round Lake.

Where is the best fishing spot on Round Lake?

Shallow bay flat is the top-rated area: a weed flat in about 3 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 Round 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 Round Lake?

Fishing on Round 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

Slush Lake 0 mi · North Boundary Lake 1 mi · Pickerel Lake 2 mi · Lower Merrick Lake 4 mi · Maeck Lake 4 mi · Spring Lake 5 mi · Tilles Lake 5 mi · Pine Lake 6 mi · Rausch Lake 7 mi · Jack's Lake 7 mi · Long Lake 7 mi · Schell Lake 8 mi

See how Round Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best northern pike lakes in Ontario

More water nearby: Parry Sound District fishing maps (441 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.