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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
292-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 43 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
Traced from the shoreline, Johnson Lake runs 292 acres with 6.3 miles of edge. A development index of 2.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. 75% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 1.6 mi with a 0.9-mi widest point. The water lies in Bulkley-Nechako Regional District. The nearest mapped water is Vivian Lake, 3 mi to the south.
The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. The spot to know is Deep basin, a deep basin in about 40 ft of water that rates prime for rainbow trout in winter. Plan around early morning and the evening in the warm months. 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 | Main-lake point (1 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (1 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (1 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Deep basin (40 ft) | Jigging spoon, Tube jig (white) |
The chart marks 7 structure features on Johnson Lake; the deepest is Deep basin at about 40 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 Johnson Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Johnson Lake is about 43 ft (13 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 on Johnson Lake.
Deep basin is the top-rated area: a deep basin in about 40 ft of water that rates prime for rainbow trout in winter. Every other rated spot, per species and season, is on the map above.
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 Johnson 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.
Vivian Lake 3 mi · Boomerang Lake 4 mi · Provis Lake 4 mi · Secord Lake 4 mi · Home Lake 5 mi · Gluten Lake 6 mi · Duten Lake 7 mi · Willington Lake 7 mi · Jardine Lake 7 mi · Hawley Lake 7 mi · Ray Lake 8 mi · Finger Lake 8 mi
See how Johnson Lake stacks up: best rainbow trout 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.