Lake depth chart
Today's read
Rating depth structure for cutthroat trout.
Recent public catches load as you reach this section.
34-acre lake in Strathcona Regional District, British Columbia. The lake tops out around 33 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
Traced from the shoreline, Mary Lake runs 34 acres with 0.9 miles of edge. At index 1.1 the outline is almost a bowl — read the depth changes, not the shoreline. Littoral water — the productive band under ~15 ft — makes up 35% of this chart. Figure 0.3 mi of water from one end to the other, 0.3 mi at the beam. You'll find it in Strathcona Regional District. Closest neighbour on DepthScout: Morton Lake, 3 mi west of here.
Spring cutthroat trout on Mary Lake hold shallow, usually 3 to 15 ft. By summer they slide out to 9 to 33 ft, and by winter most fish are in 8 to 33 ft. The chart's best answer is Break off the point — drop-off, 23 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with a trolled spoon (small) or an inline spinner.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (6 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 9 to 33 ft | dawn & dusk | Break off the point (23 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (6 ft) | Casting spoon, Inline spinner |
| Winter | 8 to 33 ft | dawn | Break off the point (23 ft) | Small jigging spoon, Marabou jig |
The chart marks 4 structure features on Mary Lake; the deepest is Deep basin at about 31 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 Mary Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Mary Lake is about 33 ft (10 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 cutthroat trout on Mary Lake.
Break off the point is the top-rated area: a drop-off in about 23 ft of water that rates prime for cutthroat trout in summer. Scroll up to the map for the complete spot list by species and season.
For cutthroat 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 Mary 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.
Morton Lake 3 mi · Mohun Lake 4 mi · Lawier Lake 5 mi · Gosling Lake 5 mi · John Hart Lake 5 mi · Comida Lake 5 mi · Twin Lake 6 mi · Boot Lake 6 mi · Surprise Lake 7 mi · Amor Lake 7 mi · Campbell Lake 7 mi · Merrill Lake 7 mi
See how Mary Lake stacks up: best cutthroat trout lakes in British Columbia
More water nearby: Strathcona Regional District fishing maps (85 charts). Browse all British Columbia fishing maps or 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.