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Fishing Mamanasco Lake: what the data says
99-acre lake near Ridgefield. CT DEEP survey water. The lake tops out around 9 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.
Largemouth Bass fishing at Mamanasco Lake
Start shallow in spring: largemouth bass sit in 2 to 9 ft that time of year. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. Plan around early morning and the evening in the warm months. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 3 to 9 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 2 to 9 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 3 to 9 ft | midday | Blade bait, Jigging spoon |
Yellow Perch fishing at Mamanasco Lake
In spring, yellow perch run shallow here, mostly 2 to 9 ft. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring yellow perch. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 9 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 9 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 9 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Chain Pickerel fishing at Mamanasco Lake
In spring, chain pickerel run shallow here, mostly 2 to 9 ft. Summer fish stay in 2 to 9 ft, and winter fish hold in 3 to 9 ft. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for chain pickerel in spring. In summer the feeding windows fall in early morning and the evening. A weedless spoon + trailer or a buzzbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | midday & dawn | Inline spinner (silver), Small spoon (red/white) |
| Summer | 2 to 9 ft | dawn & dusk | Weedless spoon + trailer, Buzzbait |
| Fall | 2 to 9 ft | midday & dawn | Jerkbait along weed edges, Spinnerbait |
| Winter | 3 to 9 ft | dawn | Jigging spoon (through ice) |
Bluegill fishing at Mamanasco Lake
Spring bluegill on Mamanasco Lake hold shallow, usually 1 to 6 ft. By summer they slide out to 2 to 9 ft, and by winter most fish are in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring bluegill. Plan around early morning and the evening in the warm months. A small sponge spider (fly) or a micro tube jig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 2 to 9 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 9 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 9 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Notable structure
- Deep basin: deep basin, around 9 ft
- Break off the point: drop-off, around 6 ft
- Secondary point: point, around 3 ft
- Back-bay flat: weed flat, around 3 ft
- Main-lake point: point, around 2 ft
- Shallow bay flat: weed flat, around 2 ft
Common questions
How deep is Mamanasco Lake?
Mamanasco Lake is about 9 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Mamanasco Lake?
Anglers target largemouth bass, bluegill, yellow perch, chain pickerel on Mamanasco Lake.
Where is the best fishing spot on Mamanasco Lake?
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Mamanasco Lake?
For largemouth bass, 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.
Nearby waters
Lake Kenosia · Ball Pond · Saugatuck Reservoir · Candlewood Lake · Squantz Pond · Lake Lillinonah
See how Mamanasco Lake stacks up: best largemouth bass lakes in Connecticut · best bluegill lakes in Connecticut · best yellow perch lakes in Connecticut · best chain pickerel lakes in Connecticut
Browse all Connecticut fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.