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65-acre Indian Harbor fishing map with 89.01%-measured NOAA BlueTopo contours, eight measured rock, pier, hard-bottom and channel-edge spots, Long Island Sound fish, three forage calendars, resident-permit connected launch access, impairment context and current Connecticut rules. The water tops out around 15 ft. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The channels, holes and drop-offs come from the source data, not a distance-from-shore model. The rest of this page walks each species through its year, using the map's own scoring.
The drawn water covers 65 acres wrapped in 3.4 miles of bank. The 3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Call it 0.9 mi long by 0.3 mi wide at the broadest reach. Its nearest charted neighbour, Captain Harbor, is 1 mi to the south.
Spring puts striped bass in skinny water — 4 to 15 ft is the zone. Summer fish stay in 5 to 15 ft, and winter fish hold in 5 to 15 ft. Summer striped bass concentrate at Surveyed channel edge 2, a good-rated drop-off around 8 ft. Warm-month bites cluster around early morning and the evening. A topwater walker at low light or a paddletail on a light jig covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Surveyed channel edge 2 (8 ft) | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 5 to 15 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Surveyed channel edge 2 (8 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 4 to 15 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Surveyed channel edge 2 (8 ft) | Pencil popper, Baitfish swimbait |
| Winter | 5 to 15 ft chart-limited; documented 20 to 50 ft | midday | Surveyed channel edge 2 (8 ft) | Slow paddletail, Bucktail near bottom |
When the water first warms, bluefish slide up into 2 to 15 ft. There's no big seasonal slide here — summer means 3 to 15 ft, winter 5 to 15 ft. If you only fish one area, make it Surveyed channel edge 2: a drop-off around 8 ft that scores good in summer. In summer the feeding windows fall in early morning and the evening. Keep a popper (early/late) or a metal jigs in the rips rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft chart-limited; documented 3 to 20 ft | dawn & dusk | Surveyed channel edge 2 (8 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 3 to 15 ft chart-limited; documented 5 to 30 ft | dawn & dusk | Surveyed channel edge 2 (8 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 2 to 15 ft chart-limited; documented 3 to 25 ft | dawn & midday | Surveyed channel edge 2 (8 ft) | Pencil popper, Big metal |
| Winter | 5 to 15 ft chart-limited; documented 15 to 40 ft | midday | open water | Metal jig worked slow (southern waters) |
Start shallow in spring: summer flounder (fluke) sit in 3 to 15 ft that time of year. They don't go far with the seasons — 3 to 15 ft covers summer, 5 to 15 ft covers winter. The spot to know is Surveyed channel edge 2, a drop-off in about 8 ft of water that rates prime for summer flounder (fluke) in summer. Warm-month bites cluster around midday and early morning. Throw a bucktail (1-3 oz by drift speed) or a gulp grub on jighead until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft chart-limited; documented 5 to 25 ft | midday & dawn | Surveyed channel edge 2 (8 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 3 to 15 ft chart-limited; documented 8 to 35 ft | midday & dawn | Surveyed channel edge 2 (8 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 4 to 15 ft chart-limited; documented 12 to 45 ft | midday | Surveyed channel edge 2 (8 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 5 to 15 ft chart-limited; documented 20 to 60 ft | midday | Surveyed channel edge 2 (8 ft) | Slow bottom rig + strip |
Spring puts black sea bass in skinny water — 4 to 15 ft is the zone. Summer fish stay in 4 to 15 ft, and winter fish hold in 5 to 15 ft. Spring black sea bass concentrate at NOAA charted underwater rock 3, a prime-rated rock pile around 4 ft. Warm-month bites cluster around midday and early morning. A bucktail + grub or a diamond jig + squid teaser covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft chart-limited; documented 10 to 40 ft | midday & dawn | NOAA charted underwater rock 3 (4 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 4 to 15 ft chart-limited; documented 15 to 60 ft | midday & dawn | NOAA charted underwater rock 3 (4 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 4 to 15 ft chart-limited; documented 20 to 80 ft | midday | NOAA charted underwater rock 3 (4 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 5 to 15 ft chart-limited; documented 40 to 100 ft | midday | NOAA charted underwater rock 3 (4 ft) | Heavy hi-lo rig on deep wrecks |
Spring tautog (blackfish) on Indian Harbor hold shallow, usually 3 to 15 ft. Depth-wise the year is flat: 4 to 15 ft in summer, 5 to 15 ft once it turns cold. Put NOAA charted underwater rock 2 first on the milk run — a rock pile near 3 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a 1/2-1 oz tog jig + crab.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft chart-limited; documented 5 to 25 ft | midday & dawn | NOAA charted underwater rock 2 (3 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 4 to 15 ft chart-limited; documented 10 to 35 ft | dawn | NOAA charted underwater rock 3 (4 ft) | 1/2-1 oz tog jig + crab |
| Fall | 3 to 15 ft chart-limited; documented 10 to 50 ft | midday | NOAA charted underwater rock 2 (3 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 5 to 15 ft chart-limited; documented 30 to 70 ft | midday | NOAA charted underwater rock 3 (4 ft) | Heavy jig + crab on deep structure |
In spring, scup (porgy) run shallow here, mostly 3 to 15 ft. Summer keeps them at 3 to 15 ft, and they winter in 4 to 15 ft. NOAA charted underwater rock 2 is the standout, a rock pile at roughly 3 ft, rated prime for spring scup (porgy). Time it for midday and early morning. You won't need more than a hi-lo porgy rig or a micro metal jig most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft chart-limited; documented 5 to 25 ft | dawn | NOAA charted underwater rock 2 (3 ft) | Small hi-lo rig, Micro jig tipped with bait |
| Summer | 3 to 15 ft chart-limited; documented 6 to 35 ft | midday & dawn | NOAA charted underwater rock 2 (3 ft) | Hi-lo porgy rig, Micro metal jig |
| Fall | 3 to 15 ft chart-limited; documented 8 to 40 ft | midday | NOAA charted underwater rock 2 (3 ft) | Compact vertical jig, Hi-lo rig |
| Winter | 4 to 15 ft chart-limited; documented 12 to 50 ft | midday | NOAA charted underwater rock 3 (4 ft) | Small slow vertical jig |
Indian Harbor also holds winter flounder (4 to 15 ft in summer). Pick any of them on the map above for rated spots and bait picks.
8 pieces of structure are mapped here — NOAA charted rock bottom, around 8 ft, is the deepest of them.
Access data: Town of Greenwich — Grass Island Marina and Marina Facility Use Permit. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Connecticut waters are set by the Connecticut DEEP (marine fishing) — and special regulations can apply to Indian Harbor specifically, so confirm the current rules before you fish.
Check the official Connecticut fishing regulations →
Indian Harbor is about 15 ft (5 m) deep at its deepest point. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The contours reflect measured and quality-assessed source depths.
Anglers target striped bass, bluefish, summer flounder (fluke), black sea bass, tautog (blackfish), scup (porgy), winter flounder on Indian Harbor. The list combines the water's survey records with habitat-filtered species from broader official evidence; those additions are plausible occurrences, not exact-water abundance or guaranteed catches.
NOAA charted underwater rock 3 is the top-rated area: a rock pile in about 4 ft of water that rates prime for black sea bass in spring. The interactive chart above rates every spot for each species and season.
For striped 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 Indian Harbor is regulated by the Connecticut DEEP (marine fishing). Check the official Connecticut regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Captain Harbor 1 mi · Byram Harbor 2 mi · Greenwich Cove 2 mi · Port Chester Harbor 3 mi, NY · Stamford Harbor 4 mi · Mamaroneck Harbor 8 mi, NY · Kensico Reservoir 9 mi, NY · Larchmont Harbor 9 mi, NY · Sheffield Island Harbor 11 mi · Lloyd Harbor 11 mi, NY · Echo Bay 11 mi, NY · Huntington Bay 12 mi, NY
See how Indian Harbor stacks up: best striped bass lakes in Connecticut · best summer flounder (fluke) lakes in Connecticut · best winter flounder lakes in Connecticut · best bluefish lakes in Connecticut
Browse all Connecticut fishing maps. See every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 89% measured, 11% source-interpolated). 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.