Lake depth chart
Today's read
Rating depth structure for brook trout.
Recent public catches load as you reach this section.
15-acre lake in Haliburton County, Ontario. The lake tops out around 46 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey). The rest of this page walks each species through its year, using the map's own scoring.
The drawn water covers 16 acres wrapped in 0.7 miles of bank. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. Roughly 25% of the water is 15 ft or less, the band where the food chain lives. Figure 0.3 mi of water from one end to the other. Haliburton County claims this one. Its nearest charted neighbour, Saskatchewan Lake, is 1 mi to the east.
Early season brook trout use the shallows, holding in 2 to 15 ft. Summer is a 10 to 30 ft game here, winter a 3 to 20 ft one. The chart's best answer is Shoreline break — drop-off, 10 ft, prime for summer. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Shoreline break (10 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shoreline break (10 ft) | Small jigging spoon, Tungsten jig + plastic |
Partridge Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 46 ft down.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Partridge Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Partridge Lake is about 46 ft (14 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey).
Anglers target brook trout on Partridge Lake.
Shoreline break is the top-rated area: a drop-off in about 10 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 Partridge Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Saskatchewan Lake 1 mi · Big Brother Lake 1 mi · Kabakwa Lake 1 mi · Welch Lake 2 mi · Lower Welch Lake 2 mi · Silver Buck Lake 2 mi · Lake St. Nora 3 mi · Halls Lake 3 mi · Kushog Lake 3 mi · Austin Lake 3 mi · Sherborne Lake 3 mi · Big Hawk Lake 3 mi
See how Partridge Lake stacks up: best brook trout lakes in Ontario
More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario 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.