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56-acre lake in Haliburton County, Ontario. The lake tops out around 25 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 56 acres of water rimmed by 1.2 miles of bank. Nearly circular (index 1.2), so the story is the bottom, not the bank. Littoral water — the productive band under ~15 ft — makes up 79% of this chart. Figure 0.4 mi of water from one end to the other, 0.3 mi at the beam. You'll find it in Haliburton County. Closest neighbour on DepthScout: Buckskin Lake, 1 mi south of here.
The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. Midsummer fish sit out in 8 to 25 ft before dropping to 8 to 25 ft for winter. The spot to know is Break off the point, a drop-off in about 17 ft of water that rates prime for smallmouth bass in winter. Plan around early morning and the evening in the warm months. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (5 ft) | Ned rig, Tube jig |
| Summer | 8 to 25 ft | dawn & dusk | Break off the point (17 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Break off the point (17 ft) | Jerkbait, Blade bait |
| Winter | 8 to 25 ft | midday | Break off the point (17 ft) | Blade bait, Hair jig |
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. Warm water sends them out to 8 to 20 ft; cold water stacks them in 8 to 25 ft. Top water on the chart: Shallow bay flat, a weed flat in the 6 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. Throw a texas-rigged 10" worm or a deep-diving crankbait until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (6 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (17 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (5 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 8 to 25 ft | midday | Break off the point (17 ft) | Blade bait, Jigging spoon |
The chart marks 5 structure features on Monrock Lake; the deepest is Deep basin at about 24 ft.
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 Monrock Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Monrock Lake is about 25 ft (8 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target smallmouth bass, largemouth bass on Monrock Lake.
Break off the point is the top-rated area: a drop-off in about 17 ft of water that rates prime for smallmouth bass in winter. Every other rated spot, per species and season, is on the map above.
For smallmouth bass, 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.
Fishing on Monrock 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.
Buckskin Lake 1 mi · Adams Lake 2 mi · Wilbermere Lake 3 mi · Tory Lake 3 mi · Lowry Lake 4 mi · Colbourne Lake 4 mi · McCue Lake 4 mi · Cockle Lake 4 mi · Mountain Lake 5 mi · Monck Lake 5 mi · Eels Lake 6 mi · Little Esson Lake 6 mi
See how Monrock Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario
More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.