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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
10-acre lake near Caswell. The lake tops out around 4 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here's the year, species by species, as the scoring engine sees it.
Traced from the shoreline, Butterfield Lake runs 9 acres with 0.6 miles of edge. At index 1.4 the outline is almost a bowl — read the depth changes, not the shoreline. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Call it 0.3 mi long. The water lies in Aroostook County. For a second option, Little Black Brook Lk lies 2 mi north.
Start shallow in spring: brook trout sit in 1 to 4 ft that time of year. They don't go far with the seasons — 1 to 4 ft covers summer, 1 to 4 ft covers winter. Top water on the chart: Deep basin, a deep basin in the 4 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 4 ft | dawn & dusk | Shallow bay flat (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 1 to 4 ft | dawn & dusk | Deep basin (4 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 4 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 1 to 4 ft | dawn | Deep basin (4 ft) | Small jigging spoon, Tungsten jig + plastic |
Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 4 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 Butterfield Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Butterfield Lake is about 4 ft (1 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 Butterfield Lake.
Deep basin is the top-rated area: a deep basin in about 4 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 Butterfield 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.
Little Black Brook Lk 2 mi · Gerard Pond 4 mi · Carry Pond 19 mi · Quisibis Lake 21 mi, NB · Mud Lake 22 mi · Long Lake 22 mi · Cross Lake 22 mi · Lindsay Lake 22 mi · Square Lake 22 mi · Roulston Lake 25 mi, NB · Mc Clusky Lake 25 mi · Eagle Lake 28 mi
See how Butterfield 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.