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143-acre lake in Algoma District, Ontario. The lake tops out around 13 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 a transect sounding survey by the Ontario MNRF. Every species below gets its seasonal read from the same numbers driving the chart.
The drawn water covers 144 acres wrapped in 3.5 miles of bank, broken up by 3 islands. A middling shoreline index (2.1) gives it some bays to work without being a maze. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. The basin spans about 1 mi end to end and 0.7 mi across at its widest. Algoma District claims this one. If the bite dies, Little Chiblow Lake is 2 mi to the south.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official Ontario MNRF Fish ON-Line record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 4 to 13 ft, wintering in 4 to 13 ft. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 5 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm 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 | 3 to 12 ft | midday & dawn | Shallow bay flat (5 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 4 to 13 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (13 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 4 to 13 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (13 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 4 to 13 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (13 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring smallmouth bass on Copp Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 4 to 13 ft, and by winter most fish are in 4 to 13 ft. The chart's best answer is Main-lake point — point, 6 ft, prime for fall. Prime time lands in early morning and the evening. The summer box starts with a drop shot (goby/minnow) or a ned rig.
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 | 3 to 12 ft | dawn & dusk | Main-lake point (6 ft) | Ned rig, Tube jig |
| Summer | 4 to 13 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (12 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 4 to 13 ft chart-limited; documented 8 to 25 ft | midday & dawn | Main-lake point (6 ft) | Jerkbait, Blade bait |
| Winter | 4 to 13 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (12 ft) | Blade bait, Hair jig |
Spring puts rock bass in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 3 to 13 ft; cold water stacks them in 4 to 13 ft. Main-lake point is the standout, a point at roughly 6 ft, rated prime for summer rock bass. Plan around the evening in the warm months. A ned rig (small) or a marabou jig 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 | 2 to 10 ft | midday & dawn | Main-lake point (6 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 3 to 13 ft chart-limited; documented 5 to 20 ft | dusk | Main-lake point (6 ft) | Ned rig (small), Marabou jig |
| Fall | 4 to 13 ft chart-limited; documented 8 to 22 ft | midday | Break off the point (12 ft) | Small tube jig, Inline spinner |
| Winter | 4 to 13 ft chart-limited; documented 12 to 30 ft | midday | Deep basin (13 ft) | Tungsten jig + plastic, Small spoon + spike |
Spring brown bullhead on Copp Lake hold shallow, usually 2 to 8 ft. They move out to 3 to 12 ft in summer and finish the year down in 4 to 13 ft. Put Deep basin first on the milk run — a deep basin near 13 ft that grades prime for winter. The feeding windows run after dark and the evening.
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 | 2 to 8 ft | dusk & night | Shallow bay flat (5 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (5 ft) | |
| Fall | 4 to 13 ft chart-limited; documented 5 to 15 ft | dusk | Deep basin (13 ft) | |
| Winter | 4 to 13 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (13 ft) |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 13 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 Copp Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Copp Lake is about 13 ft (4 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target yellow perch, smallmouth bass, rock bass, brown bullhead on Copp Lake.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
For yellow perch, 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 Copp 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.
Little Chiblow Lake 2 mi · Bernard Lake 2 mi · Caribou Lake 2 mi · Smokey Lake 3 mi · Williamson Lake 3 mi · Darrell Lake 3 mi · Chiblow Lake 4 mi · Pepler Lake 4 mi · Alma Lake 5 mi · Casselman's Lake 5 mi · Oscar Lake 5 mi · Constance Lake 6 mi
See how Copp Lake stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best rock bass lakes in Ontario · best brown bullhead 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.