Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
11-acre lake in British Columbia. The lake tops out around 29 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. Here's the year, species by species, as the scoring engine sees it.
Rock Lake maps at 11 acres behind 0.7 miles of shoreline. With a 1.5 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 36% of this chart, as modeled. The basin spans about 0.3 mi end to end. It sits in East Kootenay Regional District. Its nearest charted neighbour, Wedgwood Lake, is 4 mi to the southeast.
Spring puts cutthroat trout in skinny water — 3 to 15 ft is the zone. Warm water sends them out to 8 to 29 ft; cold water stacks them in 7 to 29 ft. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for summer cutthroat trout. Plan around early morning and the evening in the warm months. A trolled spoon (small) or an inline spinner covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 8 to 29 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (13 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Inline spinner |
| Winter | 7 to 29 ft chart-limited; documented 10 to 40 ft | dawn | Break off the point (13 ft) | Small jigging spoon, Marabou jig |
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Expect a summer slide to 8 to 29 ft, then a winter hold in 6 to 29 ft. Put Break off the point first on the milk run — a drop-off near 13 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 29 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (13 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 8 to 29 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 29 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (13 ft) | Jigging spoon, Tube jig (white) |
Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 25 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 Rock Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Rock Lake is about 29 ft (9 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, rainbow trout on Rock Lake.
Break off the point is the top-rated area: a drop-off in about 13 ft of water that rates prime for cutthroat trout in summer. The interactive chart above rates every spot for each 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 Rock 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.
Wedgwood Lake 4 mi · Elizabeth Lake 5 mi · Cerulean Lake 5 mi · Og Lake 5 mi · Sunburst Lake 6 mi · Lake Magog 6 mi · Larix Lake 7 mi · Gog Lake 7 mi · Grizzly Lake 8 mi · Rock Isle Lake 8 mi · Baptiste Lake 23 mi · Gap Lake 24 mi, AB
See how Rock Lake stacks up: best rainbow trout lakes in British Columbia · best cutthroat trout lakes in British Columbia
More water nearby: East Kootenay Regional District fishing maps (89 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.