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Fishing Flagstaff Lake: what the data says
20,300-acre lake near Eustis. The lake tops out around 48 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. Below is the species-by-species picture, pulled from the same data the map uses.
Rainbow Trout fishing at Flagstaff Lake
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 8 to 40 ft. The spot to know is Break off the point, a drop-off in about 16 ft of water that rates prime for rainbow trout in winter. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 46 ft
- Deepest basin: deep basin, around 46 ft
- Shallow feeding flat: feeding flat, around 20 ft
- Shallow feeding flat: feeding flat, around 18 ft
- Break off the point: drop-off, around 16 ft
- Back-bay flat: weed flat, around 9 ft
- Main-lake point: point, around 8 ft
- Rock reef: rock pile, around 8 ft
- Shoreline point: point, around 8 ft
- Secondary point: point, around 5 ft
- Old creek channel: creek channel, around 4 ft
- Shallow bay flat: weed flat, around 3 ft
- South Branch Dead River inflow: inflow / creek mouth, around 3 ft
- Cold Brook inflow: inflow / creek mouth, around 3 ft
Common questions
How deep is Flagstaff Lake?
Flagstaff Lake is about 48 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 Flagstaff Lake?
Anglers target rainbow trout on Flagstaff Lake.
Where is the best fishing spot on Flagstaff Lake?
Break off the point is the top-rated area: a drop-off in about 16 ft of water that rates prime for rainbow trout in winter. Open the map above to see every rated spot for each species and season.
When is the best time to fish Flagstaff Lake?
For rainbow 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
Embden Pond · Rangeley Lake · Kennebec River · Moosehead Lake · Great Pond · Messalonskee Lake
See how Flagstaff Lake stacks up: best rainbow trout 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.