Sign inSign up freeRecent catches at Square Lake
Shared by DepthScout anglers. Exact spots stay private, always.
Fishing Square Lake: what the data says
8,090-acre lake near Square Lake. The lake tops out around 122 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.
Brook Trout fishing at Square Lake
In spring, brook trout run shallow here, mostly 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it California Brook inflow: a inflow / creek mouth around 3 ft that scores prime in spring. Best bite is early morning and the evening. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Burbot fishing at Square Lake
In spring, burbot run shallow here, mostly 25 to 70 ft. Summer pushes them deeper, 50 to 120 ft, and winter fish settle into 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 115 ft, rated prime for summer burbot. In summer the feeding windows fall in after dark and midday. A heavy jig + cut bait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Glow tungsten + cut bait, Rattle spoon + minnow head |
Brown Bullhead fishing at Square Lake
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. They move out to 3 to 12 ft in summer and finish the year down in 10 to 25 ft. Back-bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring brown bullhead. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | |
| Summer | 3 to 12 ft | night & dusk | |
| Fall | 5 to 15 ft | dusk | |
| Winter | 10 to 25 ft | midday |
White Perch fishing at Square Lake
Spring white perch on Square Lake hold shallow, usually 4 to 15 ft. By summer they slide out to 15 to 40 ft, and by winter most fish are in 20 to 50 ft. Goddard Brook inflow is the standout, a inflow / creek mouth at roughly 8 ft, rated prime for spring white perch. Plan around early morning in the warm months. A small spinner rig drifted or a 1/8 oz jigging spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Small jig + curly tail, Inline spinner (silver) |
| Summer | 15 to 40 ft | dawn | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 15 to 45 ft | midday | Jigging spoon (small), Blade bait |
| Winter | 20 to 50 ft | dusk | Small rattle spoon, Tungsten + spikes |
Notable structure
- Deep basin: deep basin, around 115 ft
- Break off the point: drop-off, around 96 ft
- Old creek channel: creek channel, around 56 ft
- Sharp break: drop-off, around 29 ft
- Feeding flat: feeding flat, around 22 ft
- Feeding flat: feeding flat, around 19 ft
- Main-lake point: point, around 14 ft
- Rock reef: rock pile, around 11 ft
- Shallow bay flat: weed flat, around 9 ft
- Rock reef: rock pile, around 9 ft
- Goddard Brook inflow: inflow / creek mouth, around 8 ft
- Secondary point: point, around 7 ft
- California Brook inflow: inflow / creek mouth, around 3 ft
- Rock reef: rock pile, around 3 ft
Common questions
How deep is Square Lake?
Square Lake is about 122 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 Square Lake?
Anglers target brook trout, burbot, white perch, brown bullhead on Square Lake.
Where is the best fishing spot on Square Lake?
California Brook inflow is the top-rated area: a inflow / creek mouth in about 3 ft of water that rates prime for brook trout in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Square Lake?
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.
Nearby waters
Cross Lake · Carry Pond · Mud Lake · Eagle Lake · Mc Clusky Lake · Second Sly Brook Lake
See how Square Lake stacks up: best brook trout lakes in Maine · best burbot lakes in Maine · best white perch lakes in Maine · best brown bullhead lakes in Maine
Browse all Maine fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.