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Rating depth structure for lake trout.
Recent public catches load as you reach this section.
440-acre lake in Thunder Bay District, Ontario. The lake tops out around 95 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. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 442 acres, worked by 4.1 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. 21% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 1.3 mi end to end and 0.8 mi across at its widest. Thunder Bay District claims this one. Cliff Lake sits 1 mi southwest — the closest neighbouring chart.
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.
Come spring, look for lake trout tight to the bank in 10 to 40 ft. They move out to 29 to 95 ft in summer and finish the year down in 20 to 80 ft. If you only fish one area, make it Deep basin: a deep basin around 95 ft that scores prime in summer. Best bite is early morning. A white tube jig (deep) or a magnum spoon on downrigger is the honest summer answer here.
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 | 10 to 40 ft | dawn & dusk | Break off the point (22 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 29 to 95 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (95 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (22 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (22 ft) | White tube jig, Airplane jig |
Count 7 structure marks on this chart. The deepest, Deep basin, sits near 95 ft.
Access data: Geospatial Ontario - Fishing Access Points; Government of Ontario - MNR Unpatented Crown Land Shoreline; Government of Ontario - MNR Unpatented Crown Land Shoreline. 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 Pringle Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Pringle Lake is about 95 ft (29 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target lake trout on Pringle Lake.
Deep basin is the top-rated area: a deep basin in about 95 ft of water that rates prime for lake trout in summer. Scroll up to the map for the complete spot list by species and season.
For lake trout, 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 Pringle 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.
Cliff Lake 1 mi · Elm Lake 2 mi · Black Mountain Lake 2 mi · Little Moraine Lake 4 mi · Moraine Lake 5 mi · Unknown Lake 5 mi · Sturge Lake 6 mi · Wolfpup Lake 8 mi · Anders Lake 8 mi · Eskwanonwatin Lake 10 mi · Disraeli Lake 11 mi · Mound Lake 12 mi
See how Pringle Lake stacks up: best lake trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 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.