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46-acre lake near T2 R10 WELS. The lake tops out around 21 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.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 6 to 21 ft, and winter fish settle into 3 to 20 ft. Deep basin is the standout, a deep basin at roughly 21 ft, rated prime for summer brook trout. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 21 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 |
How deep is Foss and Knowlton Pond?
Foss and Knowlton Pond is about 21 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 Foss and Knowlton Pond?
Anglers target brook trout on Foss and Knowlton Pond.
Where is the best fishing spot on Foss and Knowlton Pond?
Deep basin is the top-rated area: a deep basin in about 21 ft of water that rates prime for brook trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Foss and Knowlton Pond?
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.
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See how Foss and Knowlton Pond stacks up: best brook 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.