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.
52-acre lake in British Columbia. The lake tops out around 35 ft. The depth chart comes from British Columbia Fish and Wildlife Branch bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
Traced from the shoreline, Ruby Lake runs 52 acres with 1.2 miles of edge. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. The shallow band under 15 ft claims about 84% of the surface — that's where the groceries are. The basin spans about 0.5 mi end to end and 0.2 mi across at its widest. The water lies in Fraser-Fort George Regional District. The nearest mapped water is Nukko Lake, 2 mi to the southwest.
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 7 to 35 ft for winter. Winter rainbow trout concentrate at Break off the point, a prime-rated drop-off around 16 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
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 (9 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (16 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (9 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 35 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (16 ft) | Jigging spoon, Tube jig (white) |
Spring puts kokanee in skinny water — 10 to 30 ft is the zone. Warm water sends them out to 11 to 35 ft; cold water stacks them in 9 to 35 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated prime for spring kokanee. Plan around early morning in the warm months. A dodger + pink/orange squid on downrigger or a kokanee bug + corn 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 | 10 to 30 ft | dawn | Deep basin (30 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 11 to 35 ft chart-limited; documented 30 to 70 ft | dawn | Deep basin (30 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 4 to 35 ft chart-limited; documented 5 to 40 ft | dawn | Deep basin (30 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 9 to 35 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (30 ft) | Small glow jig + corn or maggot, Tiny spoon |
Spring lake whitefish on Ruby Lake hold shallow, usually 11 to 35 ft. Depth-wise the year is flat: 11 to 35 ft in summer, 11 to 35 ft once it turns cold. The chart's best answer is Deep basin — deep basin, 30 ft, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
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 | 11 to 35 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (16 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 11 to 35 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (16 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 11 to 35 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (30 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, burbot run shallow here, mostly 11 to 35 ft. Summer keeps them at 11 to 35 ft, and they winter in 9 to 35 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated prime for spring burbot. Time it for after dark and midday. You won't need more than a heavy jig + cut bait most summer days.
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 | 11 to 35 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (30 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 11 to 35 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (30 ft) | Heavy jig + cut bait |
| Fall | 11 to 35 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (30 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 9 to 35 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (30 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 4 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 Ruby Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Ruby Lake is about 35 ft (11 m) deep at its deepest point. The depth chart comes from British Columbia Fish and Wildlife Branch bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target rainbow trout, kokanee, lake whitefish, burbot on Ruby Lake. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for kokanee in spring. 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 Ruby 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.
Nukko Lake 2 mi · Chief Lake 2 mi · Eena Lake 3 mi · Crescent Lake 4 mi · Brule Lake 5 mi · Murch Lake 6 mi · Obert Lake 6 mi · Shell Lake 7 mi · Ferguson Lake 7 mi · Ness Lake 7 mi · Kathie Lake 7 mi · Heron Lake 7 mi
See how Ruby Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best lake whitefish lakes in British Columbia · best burbot lakes in British Columbia
More water nearby: Fraser-Fort George Regional District fishing maps (188 charts). Browse all British Columbia fishing maps. 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.