Lake depth chart
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Rating depth structure for chinook salmon.
Recent public catches load as you reach this section.
1,145-acre lake in British Columbia. The lake tops out around 295 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 1,143 acres, worked by 11 miles of shoreline. With a shoreline index of 2.3, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 1% of the surface on the model — that's where the groceries are. The basin spans about 3 mi end to end and 1.9 mi across at its widest. It sits in Skeena-Queen Charlotte Regional District. Salter Lake sits 4 mi northwest — the closest neighbouring chart.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official exact-water fish record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
When the water first warms, chinook salmon slide up into 5 to 40 ft. By summer they slide out to 50 to 120 ft, and by winter most fish are in 30 to 90 ft. If you only fish one area, make it Main-lake point: a point around 74 ft that scores good in summer. In summer the feeding windows fall in early morning and the evening. Keep a flasher + fly (green/white) or a magnum spoon on downrigger rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 40 ft | dawn & dusk | open water | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 50 to 120 ft | dawn & dusk | Main-lake point (74 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dawn & dusk | open water | J-plug (glow), Flasher + fly |
| Winter | 30 to 90 ft | midday | open water | Small spoon on a slow troll, Stickbait deep |
When the water first warms, coho salmon slide up into 3 to 25 ft. Summer is a 30 to 70 ft game here, winter a 20 to 60 ft one. The feeding windows run early morning and the evening. Keep a dodger + fly or a medium spoon above the thermocline rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | open water | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 30 to 70 ft | dawn & dusk | open water | Dodger + fly, Medium spoon above the thermocline |
| Fall | 8 to 40 ft | dawn & dusk | open water | Casting spoon, Spinner (chartreuse) |
| Winter | 20 to 60 ft | midday | open water | Small spoon, slow troll |
Spring puts cutthroat trout in skinny water — 3 to 15 ft is the zone. Warm water sends them out to 10 to 35 ft; cold water stacks them in 10 to 40 ft. Plan around early morning and the evening in the warm months. A trolled spoon (small) or an inline spinner covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | open water | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | open water | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | open water | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | open water | Small jigging spoon, Marabou jig |
Spring kokanee on Sylvia Lake hold shallow, usually 10 to 30 ft. By summer they slide out to 30 to 70 ft, and by winter most fish are in 20 to 80 ft. Prime time lands in early morning. The summer box starts with a dodger + pink/orange squid on downrigger or a kokanee bug + corn.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | open water | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | open water | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | open water | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 20 to 80 ft | dawn | open water | Small glow jig + corn or maggot, Tiny spoon |
Start shallow in spring: dolly varden sit in 1 to 30 ft that time of year. Warm water sends them out to 2 to 40 ft; cold water stacks them in 8 to 45 ft. Fish it in early morning and the evening and you'll meet the bite. Throw a small chrome spoon or a baitfish streamer until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 30 ft | dawn & midday | open water | Small silver spoon, Inline spinner |
| Summer | 2 to 40 ft | dawn & dusk | open water | Small chrome spoon, Baitfish streamer |
| Fall | 1 to 25 ft | dawn & dusk | open water | Small spinner, Egg or fry pattern |
| Winter | 8 to 45 ft | midday | open water | Small slow spoon, Weighted baitfish fly |
Come spring, look for sockeye salmon tight to the bank in 5 to 70 ft. Expect a summer slide to 3 to 80 ft, then a winter hold in 25 to 110 ft. Start at Main-lake point. It's a point holding about 74 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A small red or pink fly behind a flasher or a compact squid or hoochie is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 70 ft | dawn & dusk | open water | Small red or pink hoochie, Compact plankton-profile fly |
| Summer | 3 to 80 ft | dawn & dusk | Main-lake point (74 ft) | Small red or pink fly behind a flasher, Compact squid or hoochie |
| Fall | 2 to 55 ft | dawn & dusk | Main-lake point (74 ft) | Small bright fly, Compact spinner where legal |
| Winter | 25 to 110 ft | midday | open water |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 251 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 Sylvia Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Sylvia Lake is about 295 ft (90 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 chinook salmon, coho salmon, cutthroat trout, kokanee, dolly varden, sockeye salmon on Sylvia Lake.
Main-lake point is the top-rated area: a point in about 74 ft of water that rates prime for sockeye salmon in summer. Scroll up to the map for the complete spot list by species and season.
For chinook salmon, 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 Sylvia 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.
Salter Lake 4 mi · Devon Lake 6 mi · Lowe Lake 6 mi · Saunders Lake 6 mi · Tuwartz Lake 10 mi · Alty Lake 12 mi · Gavel Lake 13 mi · Caponero Lake 15 mi · Lower Lake 15 mi · Ecstall Lake 18 mi · Lower Lake 19 mi · Alvin Lake 21 mi
See how Sylvia Lake stacks up: best chinook salmon lakes in British Columbia · best coho salmon lakes in British Columbia · best kokanee lakes in British Columbia · best cutthroat trout lakes in British Columbia
More water nearby: Skeena-Queen Charlotte Regional District fishing maps (46 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.