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32-acre lake in Nipissing District, Ontario. The lake tops out around 43 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 1968, a decades-old survey (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
Traced from the shoreline, Blue L. runs 32 acres with 1.4 miles of edge. Index 1.8 on the shoreline: a few honest points and pockets, nothing labyrinthine. The shallow band under 15 ft claims about 47% of the surface — that's where the groceries are. Tip to tip the water measures near 0.5 mi with a 0.2-mi widest point. The water lies in Nipissing District. The nearest mapped water is Wet Lake, 1 mi to the northeast.
The spring pattern is a shallow one: splake in 5 to 25 ft. As the season builds they drop to 13 to 43 ft, wintering in 10 to 43 ft. Top water on the chart: Break off the point, a drop-off in the 9 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a trolled spoon at the thermocline or a white tube jig (deep) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Break off the point (9 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 13 to 43 ft | dawn & dusk | Break off the point (9 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (9 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 43 ft | dawn | Break off the point (9 ft) | Jigging spoon tipped with minnow head, Small white tube |
Spring yellow perch on Blue L. hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Break off the point — drop-off, 9 ft, prime for summer. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (9 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (40 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (40 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 40 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 Blue L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Blue L. is about 43 ft (13 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1968, a decades-old survey (an MNRF lake survey).
Anglers target splake, yellow perch on Blue L..
Break off the point is the top-rated area: a drop-off in about 9 ft of water that rates prime for splake in summer. Every other rated spot, per species and season, is on the map above.
For splake, 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 Blue L. 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.
Wet Lake 1 mi · Kawawaymog Lake 1 mi · Pat Lake 2 mi · Holts L. 3 mi · Maryjane Lake 3 mi · Corkery Lake 3 mi · Cornick Lake 3 mi · Edwards Lake 3 mi · Shaw Lake 3 mi · Nahma Lake 3 mi · Denis Lake 4 mi · East Tower L. 4 mi
See how Blue L. stacks up: best yellow perch lakes in Ontario · best splake lakes in Ontario
More water nearby: Nipissing District fishing maps (683 charts). Browse all Ontario fishing maps or 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.