Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
650-acre lake near T3 R8 WELS. The lake tops out around 28 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, Katahdin Lake runs 648 acres with 5 miles of edge, broken up by an island. A shoreline index of 1.4 says round and simple: fish relate to depth changes here, not shoreline features. About 67% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 1.6 mi end to end and 1 mi across at its widest. You'll find it in Penobscot County. The nearest mapped water is Sandy Stream Pond, 3 mi to the west.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. As the season builds they drop to 8 to 28 ft, wintering in 3 to 20 ft. Top water on the chart: South Turner Brook inflow, an inflow / creek mouth in the 2 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | South Turner Brook inflow (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 8 to 28 ft | dawn & dusk | Deep basin (28 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | South Turner Brook inflow (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | South Turner Brook inflow (2 ft) | Small jigging spoon, Tungsten jig + plastic |
8 pieces of structure are mapped here — Deep basin, around 28 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 Katahdin Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Katahdin Lake is about 28 ft (9 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 Katahdin Lake.
South Turner Brook inflow is the top-rated area: an inflow / creek mouth in about 2 ft of water that rates prime for brook trout in spring. 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 Katahdin 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.
Sandy Stream Pond 3 mi · Whidden Pond #1 4 mi · Basin Pond (Lower) 5 mi · Basin Pond (Upper) 5 mi · Little Hathorn Pond 5 mi · Russell Pond 7 mi · Deep Pond 8 mi · Weed Pond 8 mi · Messer Pond 8 mi · Six Ponds #4 9 mi · Six Ponds #3 9 mi · "Upper" Twin Pond 9 mi
See how Katahdin Lake stacks up: best brook trout lakes in Maine
More water nearby: Penobscot County fishing maps (34 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.