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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
516-acre lake in Peace River Regional District, British Columbia. The lake tops out around 35 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 516 acres wrapped in 4 miles of bank, with a single island in the mix. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. The shallow band under 15 ft claims about 81% of the surface — that's where the groceries are. Tip to tip the water measures near 1.3 mi with a 1-mi widest point. It sits in Peace River Regional District. Teepee Lake sits 9 mi northeast — the closest neighbouring chart.
Early season brook trout use the shallows, holding in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. Put Deep basin first on the milk run — a deep basin near 30 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Deep basin (30 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (1 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring rainbow trout on One Island Lake hold shallow, usually 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 7 to 35 ft. The chart's best answer is Deep basin — deep basin, 30 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (1 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Deep basin (30 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Deep basin (30 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 35 ft | dawn | Deep basin (30 ft) | Jigging spoon, Tube jig (white) |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 30 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 One Island Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
One Island Lake is about 35 ft (11 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 brook trout, rainbow trout on One Island Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for brook trout in summer. Open the map above to see every rated spot for each species and season.
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 One Island 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.
Teepee Lake 9 mi · Beaverlodge Lake 10 mi · Gauthier Lake 10 mi · Boot Lake 10 mi · Kelly Lake 11 mi · Blackhawk Lake 15 mi · Swan Lake 18 mi · Bearhole Lake 24 mi · Trout Lake 24 mi · Quality Lake 28 mi · Wasp Lake 29 mi · Gibson Lake 30 mi
See how One Island Lake stacks up: best rainbow trout lakes in British Columbia · best brook trout lakes in British Columbia
More water nearby: Peace River Regional District fishing maps (100 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.