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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
3-acre lake near Eagle Lake. 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. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Isie Lake runs 3 acres with 0.3 miles of edge. Nearly circular (index 1.3), so the story is the bottom, not the bank. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout. The water lies in Aroostook County. Closest neighbour on DepthScout: Second Wallagrass Lake, 4 mi northwest of here.
Spring puts brook trout in skinny water — 1 to 4 ft is the zone. Summer fish stay in 1 to 4 ft, and winter fish hold in 1 to 4 ft. Deep basin is the standout, a deep basin at roughly 3 ft, rated prime for summer brook trout. Plan around early morning and the evening in the warm months. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 4 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 1 to 4 ft | dawn & dusk | Deep basin (3 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 4 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 1 to 4 ft | dawn | Deep basin (3 ft) | Small jigging spoon, Tungsten jig + plastic |
Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 3 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 Isie Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Isie 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 Isie Lake.
Deep basin is the top-rated area: a deep basin in about 3 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 Isie 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 Wallagrass Lake 4 mi · Blake Lake 6 mi · Little Gilbert Pond 6 mi · Gilbert Pond 6 mi · First Sly Brook Lake 7 mi · Second Sly Brook Lake 7 mi · Eagle Lake 8 mi · St Froid Lake 8 mi · Third Wallagrass Lake 8 mi · Wheelock Lake 9 mi · Hunnewell Lake 10 mi · McLean Lake 10 mi
See how Isie 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.