Salt water depth chart
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304-acre Hockomock Bay fishing map with NOAA BlueTopo survey contours (77.43% measured, 99.77% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 68 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. What the data behind the map says about each species, season by season:
Hockomock Bay maps at 304 acres behind 3.7 miles of shoreline. With a 1.5 development index there's bank structure worth casting at, in moderation. About 72% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 1.2 mi end to end and 0.7 mi across at its widest. If the bite dies, Brookings Bay is 1 mi to the north.
The spring pattern is a shallow one: striped bass in 5 to 20 ft. Midsummer fish sit out in 25 to 60 ft before dropping to 20 to 50 ft for winter. The spot to know is Surveyed channel edge, a drop-off in about 34 ft of water that rates good for striped bass in summer. Plan around early morning and the evening in the warm months. Summer baits: a topwater walker at low light or a paddletail on a light jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Surveyed channel edge (9 ft) | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 25 to 60 ft | dawn & dusk | Surveyed channel edge (34 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 10 to 35 ft | dawn & dusk | Surveyed channel edge (34 ft) | Pencil popper, Baitfish swimbait |
| Winter | 20 to 50 ft | midday | Surveyed channel edge (34 ft) | Slow paddletail, Bucktail near bottom |
Spring bluefish on Hockomock Bay hold shallow, usually 3 to 20 ft. They move out to 5 to 30 ft in summer and finish the year down in 15 to 40 ft. Put Surveyed channel edge first on the milk run — a drop-off near 9 ft that grades good for summer. The feeding windows run early morning and the evening. The summer box starts with a popper (early/late) or a metal jigs in the rips.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Surveyed channel edge (9 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 5 to 30 ft | dawn & dusk | Surveyed channel edge (9 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 25 ft | dawn & midday | Surveyed channel edge (9 ft) | Pencil popper, Big metal |
| Winter | 15 to 40 ft | midday | open water | Metal jig worked slow (southern waters) |
In spring, atlantic mackerel run shallow here, mostly 5 to 45 ft. Midsummer fish sit out in 13 to 68 ft before dropping to 17 to 68 ft for winter. Summer atlantic mackerel concentrate at Surveyed channel edge, a good-rated drop-off around 34 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a feather rig or a small vertical 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 | 5 to 45 ft | dawn & dusk | Surveyed channel edge (34 ft) | Mackerel feather rig, Small silver jig |
| Summer | 13 to 68 ft chart-limited; documented 15 to 80 ft | dawn & dusk | Surveyed channel edge (34 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Surveyed channel edge (34 ft) | Compact silver jig, Sparse feather rig |
| Winter | 17 to 68 ft chart-limited; documented 30 to 120 ft | midday | Surveyed channel edge (34 ft) | Small deep jig |
In spring, atlantic cod run shallow here, mostly 14 to 68 ft. Summer keeps them at 17 to 68 ft, and they winter in 15 to 68 ft. NOAA charted underwater rock is the standout, a rock pile at roughly 4 ft, rated prime for fall atlantic cod. Time it for early morning. You won't need more than a heavy metal jig or a large soft-plastic 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 | 14 to 68 ft chart-limited; documented 20 to 100 ft | dawn | NOAA charted underwater rock (4 ft) | Diamond jig, Heavy bucktail |
| Summer | 17 to 68 ft chart-limited; documented 45 to 180 ft | dawn | NOAA charted underwater rock (4 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 12 to 68 ft chart-limited; documented 25 to 140 ft | dawn | NOAA charted underwater rock (4 ft) | Diamond jig, Bucktail with teaser |
| Winter | 15 to 68 ft chart-limited; documented 50 to 220 ft | midday | NOAA charted underwater rock (4 ft) | Heavy vertical jig |
Early season atlantic herring use the shallows, holding in 5 to 25 ft. Summer is a 15 to 50 ft game here, winter a 20 to 60 ft one. The chart's best answer is NOAA charted underwater rock — rock pile, 4 ft, prime for spring. Best bite is early morning and the evening. Tie on a herring feather rig or a small silver jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | NOAA charted underwater rock (4 ft) | Small herring feather rig, Micro jig rig |
| Summer | 15 to 50 ft | dawn & dusk | Surveyed channel edge (34 ft) | Herring feather rig, Small silver jig |
| Fall | 10 to 40 ft | dawn & dusk | Surveyed channel edge (34 ft) | Small feather rig, Compact silver spoon |
| Winter | 20 to 60 ft | midday | Surveyed channel edge (34 ft) | Small silver jig, Sparse feather rig |
Start shallow in spring: winter flounder sit in 2 to 18 ft that time of year. Summer pushes them deeper, 8 to 30 ft, and winter fish settle into 3 to 20 ft. The spot to know is Surveyed channel edge, a drop-off in about 9 ft of water that rates good for winter flounder in spring. Warm-month bites cluster around early morning. Throw a light scented jig worked slowly until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 18 ft | midday & dawn | Surveyed channel edge (9 ft) | Small bucktail tipped with worm, Scented grub on a light jig |
| Summer | 8 to 30 ft | dawn | Surveyed channel edge (9 ft) | Light scented jig worked slowly |
| Fall | 6 to 25 ft | midday | Surveyed channel edge (9 ft) | Small bucktail + worm, Scented bottom jig |
| Winter | 3 to 20 ft | midday | Surveyed channel edge (9 ft) | Small bucktail tipped with worm |
Hockomock Bay carries 7 mapped structure features, topping out (or rather bottoming out) at Surveyed channel edge, about 34 ft down.
Access data: Maine GeoLibrary — Boat Launches (Maine IF&W / DACF). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine DMR (saltwater recreational fishing) — and special regulations can apply to Hockomock Bay specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Hockomock Bay is about 68 ft (21 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, atlantic mackerel, atlantic cod, atlantic herring, winter flounder on Hockomock Bay. 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 4 ft of water that rates prime for atlantic cod in fall. Open the map above to see every rated 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 Hockomock Bay is regulated by the Maine DMR (saltwater recreational fishing). Check the official Maine regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Brookings Bay 1 mi · Hall Bay 1 mi · Knubble Bay 2 mi · Robinhood Cove 4 mi · Sagadahoc River 5 mi · Five Islands Harbor 5 mi · Ebenecook Harbor 6 mi · Harmon Harbor 6 mi · Boothbay Harbor 7 mi · Lewis Cove 7 mi · Linekin Bay 8 mi · Todd Bay 8 mi
See how Hockomock Bay stacks up: best striped bass lakes in Maine · best winter flounder lakes in Maine · best bluefish lakes in Maine · best atlantic herring lakes in Maine
Browse all Maine fishing maps. See every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 77% measured, 22% 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.