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.
35-acre lake in Peace River Regional District, British Columbia. The lake tops out around 55 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, Boulder Lake draws 35 acres inside 1.6 miles of shoreline. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. Littoral water — the productive band under ~15 ft — makes up 55% of this chart, as modeled. Figure 0.7 mi of water from one end to the other. The water lies in Peace River Regional District. For a second option, Gwillim Lake lies 13 mi east.
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Break off the point, a drop-off in the 25 ft range, prime in winter. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (14 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (25 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (14 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (25 ft) | Jigging spoon, Tube jig (white) |
The chart marks 6 structure features on Boulder Lake; the deepest is Deep basin at about 47 ft.
Access data: British Columbia Recreation Sites and Trails - Recreation Sites Subset. 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 Boulder Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Boulder Lake is about 55 ft (17 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 rainbow trout on Boulder Lake.
Break off the point is the top-rated area: a drop-off in about 25 ft of water that rates prime for rainbow trout in winter. Every other rated spot, per species and season, is on the map above.
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 Boulder 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.
Gwillim Lake 13 mi · Moose Lake 18 mi · Iver Lake 21 mi · Sundance Lakes 28 mi · Wasp Lake 29 mi · Otto Lake 30 mi · Jackfish Lake 32 mi · Moberly Lake 33 mi · Quality Lake 34 mi · Hook Lake 36 mi · South Cameron Lake 37 mi · Heart Lake 38 mi
See how Boulder Lake stacks up: best rainbow trout lakes in British Columbia
More water nearby: Peace River Regional District fishing maps (100 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.