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Rating depth structure for brook trout.
Recent public catches load as you reach this section.
7-acre lake in Thunder Bay District, Ontario. The lake tops out around 15 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Here is how the season plays out for each species, straight from the data behind the map.
The drawn water covers 6 acres wrapped in 0.4 miles of bank. Nearly circular (index 1.1), so the story is the bottom, not the bank. It sits in Thunder Bay District. Its nearest charted neighbour, Cavern Lake, is 1 mi to the southwest.
When the water first warms, brook trout slide up into 2 to 15 ft. There's no big seasonal slide here — summer means 5 to 15 ft, winter 2 to 15 ft. If you only fish one area, make it Deep basin: a deep basin around 13 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
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 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 5 to 15 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (13 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 2 to 15 ft chart-limited; documented 3 to 20 ft | dawn | Deep basin (13 ft) | Small jigging spoon, Tungsten jig + plastic |
The chart marks 3 structure features on Bishops Lake; the deepest is Deep basin at about 13 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 Bishops Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Bishops Lake is about 15 ft (5 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 brook trout on Bishops Lake.
Deep basin is the top-rated area: a deep basin in about 13 ft of water that rates prime for brook trout in summer. Every other rated spot, per species and season, is on the map above.
For brook trout, 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 Bishops 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.
Cavern Lake 1 mi · Miner Lake 3 mi · Innes Lake 3 mi · Fall Lake 3 mi · Bat Lake 3 mi · Golden Gate Lake 3 mi · Welburn Lake 3 mi · Wiggins Lake 4 mi · Billy Lake 5 mi · Stewart Lake 6 mi · Furcate Lake 7 mi · Nolan Lake 7 mi
See how Bishops Lake stacks up: best brook trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 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.