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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
34-acre lake near T10 R10 WELS. The lake tops out around 6 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
Traced from the shoreline, Upper Island Pond runs 33 acres with 1 miles of edge. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. The basin spans about 0.5 mi end to end and 0.2 mi across at its widest. The water lies in Piscataquis County. The nearest mapped water is Peaked Mountain Pond, 1 mi to the west.
In spring, brook trout run shallow here, mostly 1 to 6 ft. Summer keeps them at 2 to 6 ft, and they winter in 1 to 6 ft. Summer brook trout concentrate at Deep basin, a prime-rated deep basin around 5 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | dawn & dusk | Shallow bay flat (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 2 to 6 ft | dawn & dusk | Deep basin (5 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 6 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 1 to 6 ft | dawn | Deep basin (5 ft) | Small jigging spoon, Tungsten jig + plastic |
Upper Island Pond carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 5 ft down.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine IFW — and special regulations can apply to Upper Island Pond specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Upper Island Pond is about 6 ft (2 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 Upper Island Pond.
Deep basin is the top-rated area: a deep basin in about 5 ft of water that rates prime for brook trout in summer. Scroll up to the map for the complete spot list by 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 Upper Island 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.
Peaked Mountain Pond 1 mi · Little Pleasant Pond 2 mi · Ragged Pond 3 mi · Clear Lake 3 mi · McPherson Pond 5 mi · Upper Portage Pond 5 mi · Upper Hudson Pond 5 mi · Mink Marsh Pond 6 mi · Second Currier Pond 6 mi · Lost Pond 7 mi · Horseshoe Pond 7 mi · Mooseleuk Lake 8 mi
See how Upper Island 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.