Lake depth chart
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19-acre lake in Cochrane District, Ontario. The lake tops out around 35 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 1972, a decades-old survey (an MNRF lake survey). What the data behind the map says about each species, season by season:
Drawn out, this is 19 acres of water rimmed by 0.7 miles of bank. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. 47% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.3 mi long by 0.2 mi wide at the broadest reach. The water lies in Cochrane District. The nearest mapped water is Lower Deception Lake, 1 mi to the west.
Come spring, look for walleye tight to the bank in 4 to 15 ft. They move out to 15 to 35 ft in summer and finish the year down in 11 to 35 ft. If you only fish one area, make it Deep basin: a deep basin around 30 ft that scores prime in winter. Best bite is the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Shoreline break (7 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Deep basin (30 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 11 to 35 ft | dusk & night | Shoreline break (7 ft) | Jigging rap, Jig + big minnow |
| Winter | 11 to 35 ft | dusk & dawn | Deep basin (30 ft) | Jigging spoon + minnow head, Rattle bait |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. The spot to know is Shoreline break, a drop-off in about 7 ft of water that rates prime for northern pike in fall. Warm-month bites cluster around early morning and the evening. Throw a bucktail or a weedless spoon over cabbage until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shoreline break (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shoreline break (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shoreline break (7 ft) | Tip-ups, Large jigging spoon |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 30 ft.
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 Connon Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Connon Lake is about 35 ft (11 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1972, a decades-old survey (an MNRF lake survey).
Anglers target walleye, northern pike on Connon Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for walleye in winter. Scroll up to the map for the complete spot list by species and season.
For walleye, 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 Connon 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.
Lower Deception Lake 1 mi · Shier Lake 1 mi · Jowett Lake 1 mi · Woodland Lake 2 mi · Steele Lake 2 mi · Kennedy Lake 2 mi · Lloyd Lake 3 mi · Blue Lake 4 mi · Park Lake 4 mi · Syndicate Lake 4 mi · Hydro Lake 5 mi · Green Lake 5 mi
See how Connon Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario
More water nearby: Cochrane District fishing maps (673 charts). Browse all Ontario 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.