Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Recent public catches load as you reach this section.
32-acre lake in British Columbia. The lake tops out around 36 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here is how the season plays out for each species, straight from the data behind the map.
The outline encloses 32 acres, worked by 1.1 miles of shoreline. A shoreline index of 1.4 says round and simple: fish relate to depth changes here, not shoreline features. Roughly 89% of the water is 15 ft or less, the band where the food chain lives. Call it 0.3 mi long by 0.3 mi wide at the broadest reach. Kootenay Boundary Regional District claims this one. Its nearest charted neighbour, Taurus Lake, is 9 mi to the west.
Early season lake trout use the shallows, holding in 9 to 36 ft. Even in summer they hold at 11 to 36 ft; winter keeps them in 9 to 36 ft. The chart's best answer is Deep basin — deep basin, 23 ft, prime for summer. Best bite is early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger 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 | 9 to 36 ft chart-limited; documented 10 to 40 ft | dawn & dusk | Break off the point (7 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 11 to 36 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (23 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 7 to 36 ft chart-limited; documented 10 to 50 ft | dusk & dawn | Break off the point (7 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 9 to 36 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (23 ft) | White tube jig, Airplane jig |
Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 7 to 36 ft. If you only fish one area, make it Break off the point: a drop-off around 7 ft that scores prime in winter. Best bite is early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
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 | Break off the point (7 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (7 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Deep basin (23 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 36 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (7 ft) | Jigging spoon, Tube jig (white) |
Williamson Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 23 ft down.
Access data: British Columbia Recreation Sites and Trails - Recreation Sites Subset; Government of British Columbia - Dual-Verified Provincial Crown Land Shoreline; Government of British Columbia - Dual-Verified Provincial Crown Land Shoreline. Confirm conditions and fees locally before you launch.
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 Williamson Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Williamson Lake is about 36 ft (11 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 lake trout, rainbow trout on Williamson Lake.
Deep basin is the top-rated area: a deep basin in about 23 ft of water that rates prime for lake trout in summer. Every other rated spot, per species and season, is on the map above.
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Williamson 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.
Taurus Lake 9 mi · Hoodoo Lake 9 mi · Thone Lake 11 mi · Jewel Lake 12 mi · Matthews Lake 12 mi · Bolduc Lake 14 mi · Wilgress Lake 16 mi · Upper Collier Lake 16 mi · Conkle Lake 16 mi · Collier Lake 17 mi · Maloney Lake 20 mi · Cup Lake 20 mi
See how Williamson Lake stacks up: best rainbow trout lakes in British Columbia · best lake trout lakes in British Columbia
More water nearby: Kootenay Boundary Regional District fishing maps (30 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.