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587-acre lake near Carmel. The lake tops out around 62 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 592 acres of water rimmed by 7.9 miles of bank — 3 islands included. The 2.3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Littoral water — the productive band under ~15 ft — makes up 19% of this chart. Figure 1.5 mi of water from one end to the other, 1.2 mi at the beam. The water lies in Putnam County. Closest neighbour on DepthScout: Kirk Lake, 1 mi northwest of here.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 15 to 35 ft. Main-lake point is the standout, a point at roughly 5 ft, rated prime for fall largemouth bass. Time it for early morning and the evening. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (3 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Secondary point (14 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (5 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (61 ft) | Blade bait, Jigging spoon |
Early season chain pickerel use the shallows, holding in 2 to 10 ft. Expect a summer slide to 3 to 15 ft, then a winter hold in 5 to 18 ft. Put Shallow bay flat first on the milk run — a feeding flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a weedless spoon + trailer or a buzzbait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (3 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Back-bay flat (6 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Back-bay flat (6 ft) | Jigging spoon (through ice) |
Early season brown trout use the shallows, holding in 3 to 25 ft. Summer is a 25 to 60 ft game here, winter a 5 to 35 ft one. The chart's best answer is Break off the point — drop-off, 61 ft, prime for summer. Best bite is after dark and early morning. Tie on a spoon at the thermocline or a deep stickbait (night) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (5 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 25 to 60 ft | night & dawn | Break off the point (61 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Main-lake point (5 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Break off the point (61 ft) | Jigging spoon, Small stickbait (slow) |
The chart marks 9 structure features on Mahopac Lake; the deepest is Deep basin at about 62 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for New York waters are set by the New York DEC — and special regulations can apply to Mahopac Lake specifically, so confirm the current rules before you fish.
Check the official New York fishing regulations →
Mahopac Lake is about 62 ft (19 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target largemouth bass, chain pickerel, brown trout on Mahopac Lake.
Main-lake point is the top-rated area: a point in about 5 ft of water that rates prime for largemouth bass in fall. Every other rated spot, per species and season, is on the map above.
For largemouth bass, 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 Mahopac Lake is regulated by the New York DEC. Check the official New York regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Kirk Lake 1 mi · Lake Gilead 4 mi · Croton Falls Reservoir 4 mi · West Branch Reservoir 4 mi · Lake Gleneida 4 mi · Pudding Street Pond 5 mi · Middle Branch Reservoir 5 mi · Amawalk Reservoir 5 mi · Boyd Corners Reservoir 5 mi · Diverting Reservoir 6 mi · Stillwater Pond 6 mi · Muscoot Reservoir 6 mi
See how Mahopac Lake stacks up: best largemouth bass lakes in New York · best brown trout lakes in New York · best chain pickerel lakes in New York
More water nearby: Putnam County fishing maps (12 charts). Browse all New York fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.