Lake depth chart
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Rating depth structure for arctic grayling.
Recent public catches load as you reach this section.
336-acre lake in Peace River Regional District, British Columbia. The lake tops out around 16 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What the data behind the map says about each species, season by season:
The drawn water covers 336 acres wrapped in 6.6 miles of bank. The 2.6 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 91% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 2.5 mi of water from one end to the other, 0.5 mi at the beam. Peace River Regional District claims this one. If the bite dies, Lifeline Lake is 13 mi to the east.
When the water first warms, arctic grayling slide up into 2 to 10 ft. Summer is a 3 to 15 ft game here, winter a 5 to 16 ft one. Start at Deep basin. It's a deep basin holding about 14 ft of water and rates prime come winter. The feeding windows run the evening and early morning. Keep a dry fly (parachute adams, elk hair caddis) or a small inline spinner rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Shallow bay flat (3 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Break off the point (7 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 5 to 16 ft | midday | Break off the point (7 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 5 to 16 ft | midday & dawn | Deep basin (14 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
6 pieces of structure are mapped here — Deep basin, around 14 ft, is the deepest of them.
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 Marion Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Marion Lake is about 16 ft (5 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 Marion Lake.
Deep basin is the top-rated area: a deep basin in about 14 ft of water that rates prime for arctic grayling in winter. The map above holds the full rated-spot list for every species and season.
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 Marion 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.
Lifeline Lake 13 mi · Trimble Lake 20 mi · Fairy Lake 32 mi · Redfern Lake 33 mi · Emerslund Lakes 50 mi · Emerslund Lakes 50 mi · Lafferty Lake 60 mi · Inga Lake 66 mi · Kluachesi Lake 67 mi · Tobin Lake 67 mi · Dunlevy Lake 72 mi · Ed Bird Lake 73 mi
See how Marion Lake stacks up: best arctic grayling 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.