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Rating depth structure for arctic grayling.
Recent public catches load as you reach this section.
2,347-acre lake in Kitimat-Stikine Regional District, British Columbia. The lake tops out around 141 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. What follows comes from the same scoring engine that paints the spots above.
On the chart, Tachilta Lakes draws 2,347 acres inside 38.8 miles of shoreline, broken up by 13 islands. The 5.7 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Roughly 38% of the water is 15 ft or less as modeled, the band where the food chain lives. Call it 4.6 mi long by 4 mi wide at the broadest reach. You'll find it in Kitimat-Stikine Regional District. Closest neighbour on DepthScout: Little Dease Lake, 22 mi east of here.
In spring, arctic grayling run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 3 to 15 ft, and winter fish settle into 8 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated good for spring arctic grayling. Time it for the evening and early morning. You won't need more than a dry fly (parachute adams, elk hair caddis) or a small inline spinner most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Shallow bay flat (6 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Shallow bay flat (6 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | open water | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Deep basin (120 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
Tachilta Lakes carries 5 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 120 ft down.
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 Tachilta Lakes specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tachilta Lakes is about 141 ft (43 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 arctic grayling on Tachilta Lakes.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates good for arctic grayling in spring. Every other rated spot, per species and season, is on the map above.
For arctic grayling, the summer bite is best in the evening and 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 Tachilta Lakes 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.
Little Dease Lake 22 mi · Tuya Lake 32 mi · Prairie Lake 34 mi · Hankin Lake 35 mi · Butte Lake 36 mi · Halfmoon Lake 36 mi · Gun Lake 37 mi · Allan Lake 37 mi · Ed Asp Lake 38 mi · Camp Island Lake 38 mi · Hluey Lakes 38 mi · Chara Lake 40 mi
See how Tachilta Lakes stacks up: best arctic grayling lakes in British Columbia
More water nearby: Kitimat-Stikine Regional District fishing maps (97 charts). Browse all British Columbia fishing maps or 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.