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28,413-acre Sheepscot Bay fishing map with NOAA BlueTopo survey contours (88.57% measured, 99.91% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 251 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 season-by-season read for each species follows, from the map's own numbers.
Sheepscot Bay maps at 28,366 acres behind 48.7 miles of shoreline — 44 islands included. A middling shoreline index (2.1) gives it some bays to work without being a maze. The shallow band under 15 ft claims about 6% of the surface — that's where the groceries are. Tip to tip the water measures near 9.5 mi with a 7.5-mi widest point. Stage Island Bay sits 2 mi west — the closest neighbouring chart.
In spring, striped bass run shallow here, mostly 5 to 20 ft. Summer pushes them deeper, 25 to 60 ft, and winter fish settle into 20 to 50 ft. Kennebec River, Phippsburg to Bath channel edge is the standout, a channel edge at roughly 58 ft, rated prime for summer striped bass. Time it for early morning and the evening. You won't need more than a topwater walker at low light or a paddletail on a light jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | open water | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 25 to 60 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 10 to 35 ft | dawn & dusk | open water | Pencil popper, Baitfish swimbait |
| Winter | 20 to 50 ft | midday | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Slow paddletail, Bucktail near bottom |
Come spring, look for bluefish tight to the bank in 3 to 20 ft. Expect a summer slide to 5 to 30 ft, then a winter hold in 15 to 40 ft. Start at Kennebec River, Phippsburg to Bath channel edge. It's a channel edge holding about 1 ft of water and rates good come summer. Prime time lands in early morning and the evening. A popper (early/late) or a metal jigs in the rips is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 5 to 30 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 25 ft | dawn & midday | open water | Pencil popper, Big metal |
| Winter | 15 to 40 ft | midday | open water | Metal jig worked slow (southern waters) |
The spring pattern is a shallow one: atlantic mackerel in 5 to 45 ft. As the season builds they drop to 15 to 80 ft, wintering in 30 to 120 ft. Top water on the chart: Kennebec River, Phippsburg to Bath channel edge, a channel edge in the 58 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a feather rig or a small vertical jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Small deep jig |
Start shallow in spring: atlantic cod sit in 20 to 100 ft that time of year. Warm water sends them out to 45 to 180 ft; cold water stacks them in 50 to 220 ft. Top water on the chart: NOAA charted underwater rock, a rock pile in the 37 ft range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a heavy metal jig or a large soft-plastic jig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 20 to 100 ft | dawn | NOAA charted underwater rock (37 ft) | Diamond jig, Heavy bucktail |
| Summer | 45 to 180 ft | dawn | NOAA charted sand (75 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 25 to 140 ft | dawn | NOAA charted underwater rock (37 ft) | Diamond jig, Bucktail with teaser |
| Winter | 50 to 220 ft | midday | NOAA charted sand (75 ft) | Heavy vertical jig |
When the water first warms, atlantic herring slide up into 5 to 25 ft. By summer they slide out to 15 to 50 ft, and by winter most fish are in 20 to 60 ft. If you only fish one area, make it NOAA charted underwater rock: a rock pile around 12 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a herring feather rig or a small silver jig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | NOAA charted underwater rock (12 ft) | Small herring feather rig, Micro jig rig |
| Summer | 15 to 50 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Herring feather rig, Small silver jig |
| Fall | 10 to 40 ft | dawn & dusk | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Small feather rig, Compact silver spoon |
| Winter | 20 to 60 ft | midday | Kennebec River, Phippsburg to Bath channel edge (58 ft) | Small silver jig, Sparse feather rig |
In spring, winter flounder run shallow here, mostly 2 to 18 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 3 to 20 ft for winter. Spring winter flounder concentrate at Kennebec River, Phippsburg to Bath channel edge, a prime-rated channel edge around 1 ft. Fish it in early morning and you'll meet the bite. You won't need more than a light scented jig worked slowly most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 18 ft | midday & dawn | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Small bucktail tipped with worm, Scented grub on a light jig |
| Summer | 8 to 30 ft | dawn | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Light scented jig worked slowly |
| Fall | 6 to 25 ft | midday | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Small bucktail + worm, Scented bottom jig |
| Winter | 3 to 20 ft | midday | Kennebec River, Phippsburg to Bath channel edge (1 ft) | Small bucktail tipped with worm |
The chart marks 185 structure features on Sheepscot Bay; the deepest is Surveyed channel edge at about 234 ft.
Access data: Maine DMR — lower Sheepscot River and Sheepscot Bay access. 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 Sheepscot Bay specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Sheepscot Bay is about 251 ft (77 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 Sheepscot 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 37 ft of water that rates prime for atlantic cod in spring. Scroll up to the map for the complete spot list by 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 Sheepscot 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.
Stage Island Bay 2 mi · Sagadahoc Bay 2 mi · Todd Bay 3 mi · Cape Harbor 4 mi · Harmon Harbor 5 mi · Damariscove Harbor 5 mi · Five Islands Harbor 6 mi · Robinhood Cove 7 mi · Booth Bay 7 mi · Ebenecook Harbor 7 mi · Sagadahoc River 7 mi · Boothbay Harbor 8 mi
See how Sheepscot 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; 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.