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160-acre lake in Renfrew County, Ontario. The lake tops out around 37 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 161 acres of water rimmed by 7.3 miles of bank, with a single island in the mix. The 4.1 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Roughly 83% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 2 mi, about 0.4 mi across. The water lies in Renfrew County. For a second option, Perrigo Lake lies 1 mi southeast.
In spring, lake trout run shallow here, mostly 9 to 37 ft. Summer keeps them at 11 to 37 ft, and they winter in 9 to 37 ft. Deep basin is the standout, a deep basin at roughly 31 ft, rated prime for summer lake trout. Time it for early morning. 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 | 9 to 37 ft | dawn & dusk | Main-lake point (9 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 11 to 37 ft | dawn | Deep basin (31 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 7 to 37 ft | dusk & dawn | Main-lake point (9 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 9 to 37 ft | dawn | Deep basin (31 ft) | White tube jig, Airplane jig |
When the water first warms, yellow perch slide up into 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (17 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (31 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (31 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring rock bass on Upper Long Lake hold shallow, usually 2 to 10 ft. By summer they slide out to 5 to 20 ft, and by winter most fish are in 12 to 30 ft. The chart's best answer is Main-lake point — point, 9 ft, prime for summer. Prime time lands in the evening. The summer box starts with a ned rig (small) or a marabou jig.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Main-lake point (9 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Main-lake point (9 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Break off the point (17 ft) | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Deep basin (31 ft) | Tungsten jig + plastic, Small spoon + spike |
Spring puts brown bullhead in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 3 to 12 ft, wintering in 10 to 25 ft. Spring brown bullhead concentrate at Shallow bay flat, a prime-rated weed flat around 4 ft. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (4 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (4 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (4 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (31 ft) |
The chart marks 6 structure features on Upper Long Lake; the deepest is Deep basin at about 31 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 Upper Long Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Upper Long Lake is about 37 ft (11 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 lake trout, yellow perch, rock bass, brown bullhead on Upper Long Lake.
Deep basin is the top-rated area: a deep basin in about 31 ft of water that rates prime for lake trout in summer. Scroll up to the map for the complete spot list by species and season.
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 Upper Long 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.
Perrigo Lake 1 mi · Brewster Lake 1 mi · Jacks Lakes 2 mi · Middle Long Lake 4 mi · Round Lake 4 mi · Lower Long Lake 5 mi · Beechnut Lake 6 mi · Flat Iron Lake 6 mi · Big Trout Lake 6 mi · Kelly Lake 7 mi · Jonsons Lake 7 mi · Stevenson Lake 7 mi
See how Upper Long Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best rock bass lakes in Ontario · best brown bullhead 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.