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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
415-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 30 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Big Loon Lake runs 415 acres with 4.2 miles of edge. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. The shallow band under 15 ft claims about 95% of the surface — that's where the groceries are. Tip to tip the water measures near 1.5 mi with a 0.8-mi widest point. You'll find it in Bulkley-Nechako Regional District. The nearest mapped water is Sargent Lake, 2 mi to the south.
The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. As the season builds they drop to 8 to 30 ft, wintering in 6 to 30 ft. Top water on the chart: Break off the point, a drop-off in the 13 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Break off the point (13 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (13 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 30 ft | dawn & dusk | Break off the point (13 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 30 ft | dawn | Break off the point (13 ft) | Jigging spoon, Tube jig (white) |
When the water first warms, lake whitefish slide up into 9 to 30 ft. There's no big seasonal slide here — summer means 9 to 30 ft, winter 9 to 30 ft. Start at Deep basin. It's a deep basin holding about 26 ft of water and rates prime come summer. The feeding windows run early morning. Keep a blade bait vertical or a small jigging spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 9 to 30 ft | midday & dawn | Break off the point (13 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 9 to 30 ft | dawn | Deep basin (26 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (13 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 9 to 30 ft | midday & dawn | Deep basin (26 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 6 structure features on Big Loon Lake; the deepest is Deep basin at about 26 ft.
Season dates, license requirements, and size and bag limits for British Columbia waters are set by the BC freshwater fishing synopsis — and special regulations can apply to Big Loon Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Big Loon Lake is about 30 ft (9 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target rainbow trout, lake whitefish on Big Loon Lake.
Deep basin is the top-rated area: a deep basin in about 26 ft of water that rates prime for lake whitefish in summer. Scroll up to the map for the complete spot list by species and season.
For rainbow 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 Big Loon Lake is regulated by the BC freshwater fishing synopsis. Check the official British Columbia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Sargent Lake 2 mi · Babine Lake 9 mi · Klaytahnkut Lake 9 mi · Fleming Lake 12 mi · Nez Lake 18 mi · Ailport Lake 19 mi · Rubyrock Lake 22 mi · Nizik Lake 22 mi · Cunningham Lake 24 mi · Old Woman Lake 26 mi · Nellian Lake 26 mi · Trembleur Lake 26 mi
See how Big Loon Lake stacks up: best rainbow trout lakes in British Columbia · best lake whitefish lakes in British Columbia
More water nearby: Bulkley-Nechako Regional District fishing maps (324 charts). Browse all British Columbia 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.