Lake depth chart
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69-acre lake in Algoma District, Ontario. The lake tops out around 37 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 1974, a decades-old survey (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 69 acres wrapped in 2.6 miles of bank. A development index of 2.3 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 94% of the water is 15 ft or less, the band where the food chain lives. Call it 0.8 mi long by 0.4 mi wide at the broadest reach. It sits in Algoma District. Its nearest charted neighbour, Kwinkwaga Lake, is 6 mi to the south.
Spring puts cisco (lake herring) in skinny water — 9 to 37 ft is the zone. Summer fish stay in 11 to 37 ft, and winter fish hold in 11 to 37 ft. Spring cisco (lake herring) concentrate at Deep basin, a prime-rated deep basin around 27 ft. Warm-month bites cluster around early morning. A vertical flutter spoon (small) or a drop-shot micro plastic covers the summer program.
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 | 9 to 37 ft chart-limited; documented 10 to 40 ft | dawn & dusk | Deep basin (27 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 11 to 37 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (27 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (3 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 11 to 37 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (27 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Warm water sends them out to 15 to 35 ft; cold water stacks them in 11 to 37 ft. Top water on the chart: Deep basin, a deep basin in the 27 ft range, prime in winter. Fish it in the evening and early morning and you'll meet the bite. Throw a crawler harness on bottom bouncer or a deep crankbait (trolled) until the fish tell you otherwise.
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 | 4 to 15 ft | dusk & dawn | Break off the point (3 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Deep basin (27 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 11 to 37 ft chart-limited; documented 12 to 40 ft | dusk & night | Deep basin (27 ft) | Jigging rap, Jig + big minnow |
| Winter | 11 to 37 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (27 ft) | Jigging spoon + minnow head, Rattle bait |
Spring northern pike on Raven Lake hold shallow, usually 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. Put Shallow bay flat first on the milk run — a weed flat near 1 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| 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 (3 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (3 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 27 ft.
Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.
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 Raven Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Raven Lake is about 37 ft (11 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1974, a decades-old survey (an MNRF lake survey).
Anglers target cisco (lake herring), walleye, northern pike on Raven Lake.
Deep basin is the top-rated area: a deep basin in about 27 ft of water that rates prime for cisco (lake herring) in spring. The interactive chart above rates every spot for each species and season.
For cisco (lake herring), 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 Raven 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.
Kwinkwaga Lake 6 mi · Matthews Lake 9 mi · McGill Lake 10 mi · Tocheri Lake 12 mi · Dayohessarah Lake 14 mi · Shekak Lake 17 mi · Strickland Lake 17 mi · White Lake 19 mi · Deer Lake 21 mi · Dunc Lake 23 mi · Lake Placid 23 mi · Clearwater Lake 23 mi
See how Raven Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best cisco (lake herring) lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario fishing maps. 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.