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Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
26-acre lake near T4 R17 WELS. The lake tops out around 5 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.
The drawn water covers 27 acres wrapped in 1 miles of bank. Its 1.4 shoreline index means few bank features; the contours below do the pattern work. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. Call it 0.4 mi long by 0.2 mi wide at the broadest reach. It sits in Somerset County. Its nearest charted neighbour, Upper First St John Pond, is 1 mi to the northwest.
Come spring, look for brook trout tight to the bank in 1 to 5 ft. Through summer count on 2 to 5 ft; the winter hold is 1 to 5 ft. Start at Deep basin. It's a deep basin holding about 5 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 | 1 to 5 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 2 to 5 ft | dawn & dusk | Deep basin (5 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 5 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 1 to 5 ft | dawn | Deep basin (5 ft) | Small jigging spoon, Tungsten jig + plastic |
4 pieces of structure are mapped here — Deep basin, around 5 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 Lower First St John Pd specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Lower First St John Pd is about 5 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 Lower First St John Pd.
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 Lower First St John Pd 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.
Upper First St John Pond 1 mi · Second St John Pond 1 mi · Third Saint John Pond 2 mi · Fourth Saint John Pond 4 mi · Foley Pond 7 mi · Lane Pond 7 mi · Russell Pond 8 mi · Seboomook Lake 9 mi · Lost Pond 11 mi · Dole Pond 11 mi · Penobscot Lake 13 mi · Big Grenier Pond 13 mi
See how Lower First St John Pd stacks up: best brook trout lakes in Maine
More water nearby: Somerset County fishing maps (76 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.