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107-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 14 ft. This chart interpolates between a real shoreline and a known maximum depth. It will point you at likely water, but it is not a navigation product. What the data behind the map says about each species, season by season:
The outline encloses 114 acres, worked by 2.2 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. The basin spans about 0.8 mi end to end and 0.3 mi across at its widest. Cariboo Regional District claims this one. If the bite dies, Watson Lake is 2 mi to the northwest.
Come spring, look for brook trout tight to the bank in 2 to 14 ft. Through summer count on 4 to 14 ft; the winter hold is 2 to 14 ft. If you only fish one area, make it Deep basin: a deep basin around 12 ft that scores prime in summer. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 14 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 4 to 14 ft | dawn & dusk | Deep basin (12 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 14 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 14 ft | dawn | Deep basin (12 ft) | Small jigging spoon, Tungsten jig + plastic |
103 Mile Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 12 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 103 Mile Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
103 Mile Lake is about 14 ft (4 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 brook trout on 103 Mile Lake.
Deep basin is the top-rated area: a deep basin in about 12 ft of water that rates prime for brook trout in summer. Open the map above to see every rated spot for each species and season.
For brook 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 103 Mile 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.
Watson Lake 2 mi · Exeter Lake 3 mi · Simon Lake 4 mi · Sepa Lake 4 mi · 108 Mile Lake 5 mi · Sucker Lake 5 mi · Abel Lake 5 mi · Tubbs Lake 6 mi · Tad Lake 6 mi · Soda Lake 7 mi · Big Lake 7 mi · Lower Lake 7 mi
See how 103 Mile Lake stacks up: best brook trout lakes in British Columbia
More water nearby: Cariboo Regional District fishing maps (445 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.