Lake depth chart
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379-acre lake in Rainy River District, Ontario. The lake tops out around 49 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. The season-by-season read for each species follows, from the map's own numbers.
Traced from the shoreline, Roman Lake runs 380 acres with 5.8 miles of edge. The shoreline is moderately structured (index 2.1) — enough points and pockets to pattern. Littoral water — the productive band under ~15 ft — makes up 59% of this chart, as modeled. The basin spans about 1.5 mi end to end and 0.7 mi across at its widest. You'll find it in Rainy River District. For a second option, Bold Lake lies 1 mi east.
Early season lake whitefish use the shallows, holding in 15 to 45 ft. Summer is a 15 to 49 ft game here, winter a 15 to 49 ft one. The chart's best answer is Deep basin — deep basin, 42 ft, prime for summer. Best bite is early morning. Tie on a blade bait vertical or a small jigging spoon and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (22 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 15 to 49 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (42 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (22 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 15 to 49 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (42 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Warm water sends them out to 8 to 20 ft; cold water stacks them in 5 to 15 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 bucktail or a weedless spoon over cabbage until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
The chart marks 6 structure features on Roman Lake; the deepest is Deep basin at about 42 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 Roman Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Roman Lake is about 49 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.
Anglers target lake whitefish, northern pike on Roman Lake.
Deep basin is the top-rated area: a deep basin in about 42 ft of water that rates prime for lake whitefish in summer. Scroll up to the map for the complete spot list by species and season.
For lake whitefish, 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.
Fishing on Roman 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.
Bold Lake 1 mi · Mount Lake 2 mi · South Crook Lake 3 mi · Grey Trout Lake 3 mi · Crook Lake 4 mi · Sandbeach Lake 4 mi · Style Lake 5 mi · Little Grey Trout Lake 5 mi · Secret Lake 5 mi · Rutter Lake 6 mi · L. 42 6 mi · Roughstone Lake 6 mi
See how Roman Lake stacks up: best northern pike lakes in Ontario · best lake whitefish lakes in Ontario
More water nearby: Rainy River District fishing maps (257 charts). Browse all Ontario fishing maps. 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.