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135-acre lake in Lennox and Addington County, Ontario. The lake tops out around 112 ft. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
On the chart, Crystal Lake draws 136 acres inside 6.3 miles of shoreline, broken up by an island. An index of 3.9 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. About 22% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 1.6 mi long by 0.5 mi wide at the broadest reach. You'll find it in Lennox and Addington County. Closest neighbour on DepthScout: Trout Lake, 2 mi northeast of here.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Midsummer fish sit out in 34 to 112 ft before dropping to 20 to 80 ft for winter. Summer lake trout concentrate at Deep basin, a prime-rated deep basin around 109 ft. Fish it in early morning and you'll meet the bite. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (16 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 34 to 112 ft | dawn | Deep basin (109 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (16 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (38 ft) | White tube jig, Airplane jig |
Spring puts brown bullhead in skinny water — 2 to 8 ft is the zone. Warm water sends them out to 3 to 12 ft; cold water stacks them in 10 to 25 ft. Back-bay flat is the standout, a weed flat at roughly 8 ft, rated prime for spring brown bullhead. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Back-bay flat (8 ft) | |
| Summer | 3 to 12 ft | night & dusk | Back-bay flat (8 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (13 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (109 ft) |
7 pieces of structure are mapped here — Deep basin, around 109 ft, is the deepest of them.
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 Crystal Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Crystal Lake is about 112 ft (34 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey).
Anglers target lake trout, brown bullhead on Crystal Lake.
Deep basin is the top-rated area: a deep basin in about 109 ft of water that rates prime for lake trout in summer. Every other rated spot, per species and season, is on the map above.
For lake trout, the summer bite is best in 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 Crystal 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.
Trout Lake 2 mi · Spring Lake 3 mi · Shanty Lake 4 mi · Beeches Lake 4 mi · Stringers Lake 5 mi · Hardwood Lake 6 mi · Weslemkoon Lake 6 mi · Genricks Lake 7 mi · Big Yirkie Lake 7 mi · Moccasin Lake 8 mi · Leidtke Lake 9 mi · Aide Lake 9 mi
See how Crystal Lake stacks up: best lake trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Lennox and Addington County fishing maps (23 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.