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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
95-acre lake near New Canada. The lake tops out around 32 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
The outline encloses 93 acres, worked by 3.1 miles of shoreline. An index of 2.3 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 92% of this chart. End to end it runs roughly 1.3 mi, about 0.2 mi across. It sits in Aroostook County. Second Sly Brook Lake sits 1 mi southeast — the closest neighbouring chart.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. Start at Deep basin. It's a deep basin holding about 30 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Deep basin (30 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (12 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 30 ft.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine IFW — and special regulations can apply to First Sly Brook Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
First Sly Brook Lake is about 32 ft (10 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 First Sly Brook Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for brook trout in summer. The interactive chart above rates every spot for each species and season.
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 First Sly Brook Lake 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.
Second Sly Brook Lake 1 mi · Blake Lake 2 mi · Eagle Lake 5 mi · Black Lake 7 mi · Isie Lake 7 mi · Second Wallagrass Lake 9 mi · Square Lake 9 mi · Cross Lake 10 mi · Wheelock Lake 10 mi · Little Gilbert Pond 10 mi · Gilbert Pond 11 mi · Bourgoin Lake 11 mi
See how First Sly Brook Lake stacks up: best brook trout lakes in Maine
More water nearby: Aroostook County fishing maps (85 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.