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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
46-acre lake near T2 R10 WELS. The lake tops out around 21 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
Drawn out, this is 45 acres of water rimmed by 1.2 miles of bank. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. 77% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.4 mi long by 0.2 mi wide at the broadest reach. The water lies in Piscataquis County. The nearest mapped water is Lost Pond, 1 mi to the northwest.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. Midsummer fish sit out in 6 to 21 ft before dropping to 3 to 20 ft for winter. The spot to know is Deep basin, a deep basin in about 21 ft of water that rates prime for brook trout in summer. Plan around early morning and the evening in the warm months. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (4 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 21 ft | dawn & dusk | Deep basin (21 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (4 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (17 ft) | Small jigging spoon, Tungsten jig + plastic |
5 pieces of structure are mapped here — Deep basin, around 21 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine IFW — and special regulations can apply to Foss and Knowlton Pond specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Foss and Knowlton Pond is about 21 ft (6 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target brook trout 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. Every other rated spot, per species and season, is on the map above.
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.
Fishing on Foss and Knowlton Pond is regulated by the Maine IFW. Check the official Maine regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lost Pond 1 mi · Daicey Pond 2 mi · Elbow Pond 2 mi · Tracy Pond 2 mi · Lily Pad Pond 2 mi · Little Hurd Pond 3 mi · Kidney Pond 3 mi · Hurd Pond 4 mi · Daisey Pond 4 mi · Little Rocky Pond 4 mi · Woodman Pond 5 mi · Horserace Ponds 5 mi
See how Foss and Knowlton Pond stacks up: best brook trout lakes in Maine
More water nearby: Piscataquis County fishing maps (191 charts). Browse all Maine fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.