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Fishing Lake Groton: what the data says
422-acre lake near Groton. The lake tops out around 36 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. What follows comes from the same scoring engine that paints the spots above.
Largemouth Bass fishing at Lake Groton
Spring largemouth bass on Lake Groton hold shallow, usually 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 15 to 35 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. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Blade bait, Jigging spoon |
Smallmouth Bass fishing at Lake Groton
Spring smallmouth bass on Lake Groton hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 11 to 36 ft. The spot to know is Main-lake point, a point in about 3 ft of water that rates prime for smallmouth bass in spring. Plan around early morning and the evening in the warm months. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 11 to 36 ft | midday | Blade bait, Hair jig |
Yellow Perch fishing at Lake Groton
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. The spot to know is Deep basin, a deep basin in about 35 ft of water that rates prime for yellow perch in fall. In summer the feeding windows fall in 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 | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Notable structure
- Deep basin: deep basin, around 35 ft
- Old creek channel: creek channel, around 22 ft
- Secondary point: point, around 4 ft
- Creek inflow: inflow / creek mouth, around 4 ft
- Main-lake point: point, around 3 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
- Break off the point: drop-off, around 2 ft
Common questions
How deep is Lake Groton?
Lake Groton is about 36 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 Lake Groton?
Anglers target largemouth bass, smallmouth bass, yellow perch on Lake Groton.
Where is the best fishing spot on Lake Groton?
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 Lake Groton?
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
Peacham Pond · Joe's Pond · Caspian Lake · Lake Morey · Lake Fairlee · Crystal Lake
See how Lake Groton stacks up: best largemouth bass lakes in Vermont · best smallmouth bass lakes in Vermont · best yellow perch lakes in Vermont
Browse all Vermont fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.