Salt water depth chart
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77-acre Nobscusset Harbor fishing map with NOAA BlueTopo survey contours (100% measured, 100% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 31 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. Here's the year, species by species, as the scoring engine sees it.
On the chart, Nobscusset Harbor draws 77 acres inside 1.5 miles of shoreline. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. Roughly 39% of the water is 15 ft or less, the band where the food chain lives. Call it 0.6 mi long by 0.3 mi wide at the broadest reach. For a second option, Walkers Pond lies 3 mi southeast.
Come spring, look for striped bass tight to the bank in 5 to 20 ft. Expect a summer slide to 9 to 31 ft, then a winter hold in 9 to 31 ft. Start at Surveyed channel edge. It's a drop-off holding about 16 ft of water and rates good come summer. Prime time lands in early morning and the evening. A topwater walker at low light or a paddletail on a light jig is the honest summer answer here.
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 | 5 to 20 ft | dawn & dusk | Surveyed channel edge (16 ft) | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 9 to 31 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Surveyed channel edge (16 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 9 to 31 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Surveyed channel edge (16 ft) | Pencil popper, Baitfish swimbait |
| Winter | 9 to 31 ft chart-limited; documented 20 to 50 ft | midday | Surveyed channel edge (16 ft) | Slow paddletail, Bucktail near bottom |
The spring pattern is a shallow one: bluefish in 3 to 20 ft. Midsummer fish sit out in 5 to 30 ft before dropping to 9 to 31 ft for winter. The spot to know is Surveyed channel edge, a drop-off in about 16 ft of water that rates good for bluefish in summer. Plan around early morning and the evening in the warm months. Summer baits: a popper (early/late) or a metal jigs in the rips gets it done.
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 20 ft | dawn & dusk | Surveyed channel edge (16 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 5 to 30 ft | dawn & dusk | Surveyed channel edge (16 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 25 ft | dawn & midday | Surveyed channel edge (16 ft) | Pencil popper, Big metal |
| Winter | 9 to 31 ft chart-limited; documented 15 to 40 ft | midday | open water | Metal jig worked slow (southern waters) |
Come spring, look for summer flounder (fluke) tight to the bank in 5 to 25 ft. They move out to 7 to 31 ft in summer and finish the year down in 9 to 31 ft. If you only fish one area, make it Surveyed channel edge: a drop-off around 16 ft that scores prime in summer. Best bite is midday and early morning. A bucktail (1-3 oz by drift speed) or a gulp grub on jighead is the honest summer answer here.
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 | 5 to 25 ft | midday & dawn | Surveyed channel edge (16 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 7 to 31 ft chart-limited; documented 8 to 35 ft | midday & dawn | Surveyed channel edge (16 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 8 to 31 ft chart-limited; documented 12 to 45 ft | midday | Surveyed channel edge (16 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 9 to 31 ft chart-limited; documented 20 to 60 ft | midday | Surveyed channel edge (16 ft) | Slow bottom rig + strip |
Come spring, look for black sea bass tight to the bank in 8 to 31 ft. Through summer count on 8 to 31 ft; the winter hold is 9 to 31 ft. Start at NOAA charted underwater rock. It's a rock pile holding about 7 ft of water and rates prime come spring. Prime time lands in midday and early morning. A bucktail + grub or a diamond jig + squid teaser is the honest summer answer here.
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 | 8 to 31 ft chart-limited; documented 10 to 40 ft | midday & dawn | NOAA charted underwater rock (7 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 8 to 31 ft chart-limited; documented 15 to 60 ft | midday & dawn | NOAA charted underwater rock (7 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 8 to 31 ft chart-limited; documented 20 to 80 ft | midday | NOAA charted underwater rock (7 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 9 to 31 ft chart-limited; documented 40 to 100 ft | midday | NOAA charted underwater rock (7 ft) | Heavy hi-lo rig on deep wrecks |
In spring, tautog (blackfish) run shallow here, mostly 5 to 25 ft. Summer pushes them deeper, 9 to 31 ft, and winter fish settle into 9 to 31 ft. NOAA charted underwater rock is the standout, a rock pile at roughly 7 ft, rated prime for spring tautog (blackfish). Time it for early morning. You won't need more than a 1/2-1 oz tog jig + crab 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 | 5 to 25 ft | midday & dawn | NOAA charted underwater rock (7 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 9 to 31 ft chart-limited; documented 10 to 35 ft | dawn | NOAA charted underwater rock (7 ft) | 1/2-1 oz tog jig + crab |
| Fall | 6 to 31 ft chart-limited; documented 10 to 50 ft | midday | NOAA charted underwater rock (7 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 9 to 31 ft chart-limited; documented 30 to 70 ft | midday | NOAA charted underwater rock (7 ft) | Heavy jig + crab on deep structure |
When the water first warms, scup (porgy) slide up into 5 to 25 ft. By summer they slide out to 5 to 31 ft, and by winter most fish are in 7 to 31 ft. If you only fish one area, make it NOAA charted underwater rock: a rock pile around 7 ft that scores prime in spring. In summer the feeding windows fall in midday and early morning. Keep a hi-lo porgy rig or a micro metal jig 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 | 5 to 25 ft | dawn | NOAA charted underwater rock (7 ft) | Small hi-lo rig, Micro jig tipped with bait |
| Summer | 5 to 31 ft chart-limited; documented 6 to 35 ft | midday & dawn | NOAA charted underwater rock (7 ft) | Hi-lo porgy rig, Micro metal jig |
| Fall | 6 to 31 ft chart-limited; documented 8 to 40 ft | midday | NOAA charted underwater rock (7 ft) | Compact vertical jig, Hi-lo rig |
| Winter | 7 to 31 ft chart-limited; documented 12 to 50 ft | midday | NOAA charted underwater rock (7 ft) | Small slow vertical jig |
Nobscusset Harbor also holds winter flounder (8 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Nobscusset Harbor carries 3 mapped structure features, topping out (or rather bottoming out) at Surveyed channel edge, about 16 ft down.
Access data: Massachusetts Division of Fisheries and Wildlife — Public Water Access. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Massachusetts waters are set by the Massachusetts DMF (recreational saltwater) — and special regulations can apply to Nobscusset Harbor specifically, so confirm the current rules before you fish.
Check the official Massachusetts fishing regulations →
Nobscusset Harbor is about 31 ft (9 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 Nobscusset 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 is the top-rated area: a rock pile in about 7 ft of water that rates prime for tautog (blackfish) in spring. Every other rated spot, per species and season, is on the map above.
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 Nobscusset Harbor is regulated by the Massachusetts DMF (recreational saltwater). Check the official Massachusetts regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Walkers Pond 3 mi · Upper Millpond 3 mi · White Pond (Harwich) 4 mi · Hinckleys Pond 5 mi · Sheep Pond 6 mi · Long Pond (Yarmouth) 6 mi · Long Pond (Harwich) 6 mi · Mill Pond 7 mi · Cliff Pond 8 mi · Little Cliff Pond 8 mi · Wequaquet Lake 10 mi · Pleasant Bay 10 mi
See how Nobscusset Harbor stacks up: best striped bass lakes in Massachusetts · best summer flounder (fluke) lakes in Massachusetts · best winter flounder lakes in Massachusetts · best bluefish lakes in Massachusetts
Browse all Massachusetts fishing maps. See every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 100% measured, 0% 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.