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Shared by DepthScout anglers. Exact spots stay private, always.
5-acre lake in Renfrew County, Ontario. The lake tops out around 20 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. What the data behind the map says about each species, season by season:
On the chart, Holmes Lake draws 5 acres inside 0.4 miles of shoreline. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. Littoral water — the productive band under ~15 ft — makes up 84% of this chart, as modeled. You'll find it in Renfrew County. The nearest mapped water is Scully Lake, 1 mi to the southwest.
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Summer pushes them deeper, 6 to 20 ft, and winter fish settle into 3 to 20 ft. The spot to know is Deep basin, a deep basin in about 17 ft of water that rates prime for brook trout in summer. Warm-month bites cluster around early morning and the evening. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 20 ft | dawn & dusk | Deep basin (17 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (17 ft) | Small jigging spoon, Tungsten jig + plastic |
3 pieces of structure are mapped here — Deep basin, around 17 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 Holmes Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Holmes Lake is about 20 ft (6 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 brook trout on Holmes Lake.
Deep basin is the top-rated area: a deep basin in about 17 ft of water that rates prime for brook trout in summer. The interactive chart above rates every 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 Holmes 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.
Scully Lake 1 mi · Limestone Lake 2 mi · Little Black Lake 2 mi · Green Lake 2 mi · St. Pierre Lake 3 mi · Wabun Lake 3 mi · Kennelly Lake 3 mi · Fergusons Lake 3 mi · Oriole Lake 3 mi · Pats Lake 4 mi · Black Donald Lake 4 mi · Elbow Lake 5 mi
See how Holmes Lake stacks up: best brook trout lakes in Ontario
More water nearby: Renfrew County fishing maps (298 charts). Browse all Ontario 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.