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.
5-acre lake in British Columbia. The lake tops out around 15 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
Portal Lake maps at 5 acres behind 0.4 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. It sits in Fraser-Fort George Regional District. Yellowhead Lake sits 4 mi west — the closest neighbouring chart.
Spring rainbow trout on Portal Lake hold shallow, usually 4 to 15 ft. Depth-wise the year is flat: 4 to 15 ft in summer, 3 to 15 ft once it turns cold. The chart's best answer is Break off the point — drop-off, 2 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter 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 | 4 to 15 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Main-lake point (1 ft) | Inline spinner (silver), Small spoon |
| Summer | 4 to 15 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Deep basin (8 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 4 to 15 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Deep basin (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 3 to 15 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (2 ft) | Jigging spoon, Tube jig (white) |
Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 8 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 Portal Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Portal Lake is about 15 ft (5 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 rainbow trout on Portal Lake.
Break off the point is the top-rated area: a drop-off in about 2 ft of water that rates prime for rainbow trout in winter. The interactive chart above rates every spot for each 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 Portal 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.
Yellowhead Lake 4 mi, BC · Witney Lake 5 mi, BC · Moose Lake 20 mi, BC · Saddle Lakes 28 mi, BC · Kinney Lake 34 mi, BC · Wildhorse Lakes 38 mi, AB · Kinky Lake 39 mi, AB · Rock Lake 40 mi, AB · Mary Gregg Lake 44 mi, AB · Fortress Lake 45 mi · Jarvis Lake 48 mi, AB · Graveyard/Cache Lakes 50 mi, AB
See how Portal Lake stacks up: best rainbow trout 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.