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Rating depth structure for cutthroat trout.
Recent public catches load as you reach this section.
78-acre lake in British Columbia. The lake tops out around 58 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. What the data behind the map says about each species, season by season:
Traced from the shoreline, Jack Lake runs 78 acres with 2.5 miles of edge. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. 39% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. End to end it runs roughly 0.8 mi, about 0.4 mi across. You'll find it in Capital Regional District. Closest neighbour on DepthScout: Mavis Lake, 1 mi north of here.
Early season cutthroat trout use the shallows, holding in 3 to 15 ft. Expect a summer slide to 10 to 35 ft, then a winter hold in 10 to 40 ft. Put Break off the point first on the milk run — a drop-off near 26 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a trolled spoon (small) or an inline spinner and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (15 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Break off the point (26 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (15 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Break off the point (26 ft) | Small jigging spoon, Marabou jig |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. Midsummer fish sit out in 3 to 12 ft before dropping to 10 to 25 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 6 ft of water that rates prime for brown bullhead in spring. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (6 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (6 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (6 ft) | |
| Winter | 10 to 25 ft | midday | open water |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 49 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 Jack Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Jack Lake is about 58 ft (18 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target cutthroat trout, brown bullhead on Jack Lake.
Break off the point is the top-rated area: a drop-off in about 26 ft of water that rates prime for cutthroat trout in summer. The map above holds the full rated-spot list for every species and season.
For cutthroat 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 Jack 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.
Mavis Lake 1 mi · Crabapple Lake 1 mi · Goldstream Lake 2 mi · Grass Lake 2 mi · Old Wolf Lake 2 mi · Lubbe Lake 3 mi · Council Lake 4 mi · Glinz Lake 4 mi · Wrigglesworth Lake 4 mi · Butchart Lake 4 mi · Macdonald Lake 4 mi · Langford Lake 5 mi
See how Jack Lake stacks up: best cutthroat trout lakes in British Columbia · best brown bullhead lakes in British Columbia
More water nearby: Capital Regional District fishing maps (60 charts). Browse all British Columbia fishing maps. See every water on DepthScout. 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.