Cotuit Entrance Channel Buoy 9
ULB
Sector Southeastern New England, Submerged Lands Act (SLA)
Atlantic Coast (St. Croix River, Maine to Shrewsbury River, New Jersey).
CG ANT WOODS HOLE

Cotuit Entrance Channel Buoy 8
ULB
Sector Southeastern New England, Submerged Lands Act (SLA)
Atlantic Coast (St. Croix River, Maine to Shrewsbury River, New Jersey).
CG ANT WOODS HOLE

Cotuit Entrance Channel Buoy 7
ULB
Sector Southeastern New England, Submerged Lands Act (SLA)
Atlantic Coast (St. Croix River, Maine to Shrewsbury River, New Jersey).
CG ANT WOODS HOLE

Hyannis Yacht Club Channel Buoy 4A
CHANNEL MARKER
Lewis Bay

Hyannis Yacht Club Channel Buoy 3A
CHANNEL MARKER
Lewis Bay

Hyannis Yacht Club Channel Buoy 2A
CHANNEL MARKER
Lewis Bay

Lewis Bay Approach Channel Buoy 22

Lewis Bay Approach Channel Buoy 21

Lewis Bay Approach Channel Buoy 20

Lewis Bay Approach Channel Lighted Buoy 18
Replaced by nun from Dec. 1 to Apr. 1.
LB

Lewis Bay Approach Channel Lighted Buoy 14
Replaced by nun Dec. 1 to Apr. 1.
LB

Lewis Bay Approach Channel Lighted Buoy 11
Replaced by can from Dec. 1 to Apr. 1.
LB

Replaced by can from Dec. 1 Apr. 1.

Replaced by nun from Dec. 1 to Apr. 1.

Replaced by nun when endangered by ice.
CGC MARCUS HANNA

Replaced by can when endangered by ice.
CGC MARCUS HANNA

Oak Bluffs North Breakwater Light 2
LT
Oak Bluffs Harbor

Marstons Mills River Buoy 16

Marstons Mills River Buoy 15

Marstons Mills River Buoy 14

Nantucket Harbor Obstruction Buoy NH

Nantucket Harbor Channel Buoy 13

Nantucket Harbor Channel Lighted Buoy 11
Replaced by can from Nov. 1 to May 1.

Brant Point Light
HORN: 1 blast ev 10s (1s bl). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.
White, cylindrical tower, footbridge to shore.
LT

Nantucket Harbor Channel Lighted Buoy 10
Replaced by Nun from Nov. 1 to May 1.

Nantucket Harbor Channel Buoy 9

Nantucket Harbor Channel Buoy 8

Nantucket Harbor Range Rear Light
Higher intensity beam to seaward.Lighted throughout 24 hours.
RR

Nantucket Harbor Range Front Light
Higher intensity beam to seaward. Lighted throughout 24 hours.
RF

Nantucket Harbor West Breakwater Buoy
White can with orange bands and diamond worded DANGER SUBMERGED JETTY.

Nantucket East Breakwater Light 3
LT

Nantucket Harbor Channel Lighted Buoy 2
Replaced by nun when endangered by ice.
CGC MARCUS HANNA

Nantucket Bar Lighted Bell Buoy NB
Removed when endangered by ice.
Red and white stripes with red spherical topmark.
CGC SYCAMORE

West Bay Inside Buoy 21

West Bay Inside Buoy 20

West Bay Inside Buoy 19

Gazelle Rock Lighted Buoy 2
Replaced by nun when endangered by ice.

Bishop And Clerks South Approach Buoy 4

Bishop And Clerks South Approach Lighted Gong Buoy 2
CGC SYCAMORE

Bishop And Clerks Light
LTMA

Bishop And Clerks Lighted Bell Buoy 1
Replaced by can when endangered by ice.

Hyannis Harbor Approach Lighted Bell Buoy HH
Red and white stripes with red spherical topmark.

Hyannis Harbor Wreck Buoy

Hyannis Harbor Breakwater Light H

Great Rock Daybeacon 4A
DBN

Hyannis Harbor Lighted Buoy 4
Removed when endangered by ice.

Halftide Rock Buoy HR
Maintained from June 1 to Sept. 30.
ASSIST NAVIGATION

Saquatucket Harbor Buoy 3
Saquatucket Harbor

Saquatucket Harbor Buoy 9
Removed when endangered by ice.
Saquatucket Harbor

Saquatucket Harbor Buoy 8
Saquatucket Harbor

Saquatucket Harbor East Jetty Light 6

Saquatucket Harbor Junction Buoy S

Great Round Shoal Channel Lighted Buoy 2
Sector Southeastern New England, Territorial Sea
CGC OAK

Great Round Shoal Channel Lighted Buoy 15
Sector Southeastern New England, Territorial Sea
CGC OAK
CGC SYCAMORE

Point Rip Buoy 1
Sector Southeastern New England, Territorial Sea
CGC OAK

Great Round Shoal Channel Lighted Buoy 13
Replaced by can when endangered by ice.

Point Rip Shoal Buoy 11

Great Round Shoal Channel Buoy 9

Nantucket (Great Point) Light
Red from 084° to 106°. Covers Cross Rip and Tuckernuck Shoals.
LTMA
Sector Boston, Submerged Land Act (SLA)

Channel Rock Buoy

Bearse Rock Buoy 4

Collier Ledge Lighted Isolated Danger Buoy DCL
Black and red bands with two black spherical topmarks.

Gallatin Rock Buoy 3

Hodges Rock Buoy 2

Chatham Roads Bell Buoy 3

Chatham Roads Buoy 4
Maintained year round.

Mill Pond Buoy 17
ASSIST NAVIGATION

Mill Pond Buoy 15
ASSIST NAVIGATION

Mill Pond Buoy 14

Handkerchief Shoal Buoy 2

Wychmere Harbor Buoy 2
Wychmere Harbor

Wychmere Harbor Jetty Light 1
Wychmere Harbor

Davis Neck Shoal Buoy 14

L'Hommedieu Shoal Buoy 15

L'Hommedieu Shoal Buoy 13

L'Hommedieu Shoal Buoy 11

Succonnesset Shoal Lighted Buoy 12

Succonnesset Shoal South Buoy

Wreck Shoal West Lighted Bell Buoy 10
Replaced by nun buoy when endangered by ice.

Eldridge Shoal Buoy 9

Wreck Shoal Lighted Bell Buoy 8

Horseshoe Shoal Wreck Buoy WR

Horseshoe Shoal Buoy 7

Nantucket Sound North Side Lighted Bell Buoy 5

Popponesett Bay Mid-Channel Buoy E

Popponesett Bay Mid-Channel Buoy D

Popponesett Bay Mid-Channel Buoy C

Popponesett Bay Mid-Channel Buoy A

Popponesett Spit Channel Buoy S8

Popponesett Spit Channel Lighted Buoy S7

Popponesett Spit Channel Buoy S6

Popponesett Spit Channel Buoy S5

Popponesett Spit Channel Lighted Buoy S4

Popponesett Spit Channel Lighted Buoy S2

Popponesett Bay Channel Buoy 11

Popponesett Bay Approach Lighted Buoy 10

Popponesett Bay Approach Buoy 9

Popponesett Bay Approach Lighted Buoy 8

Popponesett Bay Approach Lighted Buoy 7

Popponesett Bay Approach Buoy 5

Popponesett Bay Approach Buoy 4

Santuit River Mid-Channel Buoy J

Santuit River Mid-Channel Buoy I

Santuit River Mid-Channel Buoy H

Santuit River Mid-Channel Buoy G

Santuit River Mid-Channel Buoy F

Cotuit Harbor Buoy 20

Cotuit Harbor Buoy 19

Cotuit Harbor Buoy 18

East Bay Buoy 6

East Bay Buoy 4

East Bay Buoy 2

Dowses Rock Danger Buoy DR
Maintained from Jun. 1 to Nov. 1.

Eel Pond Buoy 15

Eel Pond Buoy 11

Eel Pond Buoy 6

Eel Pond West Jetty Light 3

Handkerchief Shoal Buoy 14

Handkerchief Shoal Buoy 12

Stone Horse Shoal Buoy 11

Pollock Rip Channel Lighted Buoy 10

Pollock Rip Channel Lighted Buoy 9

Pollock Rip Channel Lighted Buoy 8

Pollock Rip Channel Buoy 5

Pollock Rip Channel Lighted Gong Buoy 4

West Bay Entrance Buoy 10

West Bay Entrance Buoy 9

West Bay Entrance Buoy 8

West Bay Entrance Lighted Buoy 6

Nantucket Sound Channel Lighted Buoy 21A

Alleghany Rock Buoy 25

West Chop Light
Red from 281° to 331°, covers Squash Meadow and Norton Shoal.
HORN: 1 blast ev 30s (3s bl). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.
LTMA

West Chop Lighted Gong Buoy 2

Hedge Fence West End Buoy

East Chop Light

East Chop Shoal Buoy 23A

East Chop Flats Lighted Bell Buoy 23

Squash Meadow West End Buoy W
Bouy marked with letter "W".

Squash Meadow East End Bell Buoy

Hedge Fence Lighted Gong Buoy 22

Cape Poge Light

Horseshoe Shoal West Part South End Buoy 2

Norton Shoal Northeast Buoy 5

Horseshoe Shoal Lighted Buoy 20

Cross Rip Lighted Gong Buoy 21

Cross Rip Shoal South End Buoy 4

Halfmoon Shoal Lighted Bell Buoy 18

Tuckernuck Shoal Buoy 3

Nantucket Sound Main Channel Lighted Buoy 17

Tuckernuck Shoal Lighted Bell Buoy 1
Replaced by lighted ice buoy when endangered by ice.

Edgartown Harbor Channel Buoy 9
Edgartown Harbor

Edgartown Harbor Light
Edgartown Harbor

Edgartown Harbor Channel Buoy 8
Edgartown Harbor

Edgartown Harbor Channel Buoy 7

Edgartown Harbor Channel Lighted Buoy 6

Outer Flats Bell Buoy 2

Stage Harbor Buoy 17
Maintained from Apr. 15 to Dec. 1.
Stage Harbor

Stage Harbor Buoy 14
Maintained from Apr. 15 to Dec. 1.
Stage Harbor

Stage Harbor Buoy 15
Maintained from Apr. 15 to Dec.01.
Stage Harbor

Stage Harbor Lighted Buoy 8

Stage Harbor Lighted Buoy 7

Stage Harbor Lighted Buoy 1

Stage Harbor Light

Stage Harbor Entrance Lighted Bell Buoy SH
Red and white stripes with red spherical topmark.

Centerville River Buoy 13

Centerville River Buoy 12

Centerville River Buoy 11

Seapuit River Buoy 24

Seapuit River Buoy 23

Seapuit River Buoy 21

Allen Harbor Entrance Buoy 6
DESIGNATE ENTRANCE CHANNEL ALLEN HB

Allen Harbor Entrance Buoy 5
DESIGNATE ENTRANCE CHANNEL ALLEN HBR

Allen Harbor Entrance Buoy 4
DESIGNATE ENTRANCE CHANNEL ALLEN HB

DESIGNATE ENTRANCE CHANNEL ALLEN HB

DESIGNATE ENTRANCE CHANNEL ALLEN HBR

Allen Harbor Entrance Lighted Buoy 1

Allen Harbor Entrance Breakwater Light
DESIGNATE ENTRANCE TO ALLEN HBR.

Kill Pond Bar Fish Trap Light S
Maintained from Mar. 1 to Oct. 1.
MARKS FISH WEIR
Herring River

Kill Pond Bar Lighted Whistle Buoy KP
Herring River

West Dennis Light
Maintained from May 1 to Oct. 31.
Herring River

Herring River West Breakwater Light 7

Herring River Entrance Buoy 6

Herring River Entrance Buoy 5

Herring River Entrance Buoy 4

Assist Navigation

Boston Pilots Mooring Buoy
Boston North Channel
CG ANT BOSTON

Boston North Channel Lighted Buoy 3
Boston North Channel
CG ANT BOSTON

Boston North Channel Lighted Bell Buoy 2
Boston North Channel
CG ANT BOSTON

President Roads Junction Lighted Buoy PR

Boston North Channel Lighted Bell Buoy 10

Boston North Channel Lighted Buoy 9

Boston North Channel Lighted Buoy 8

Great Faun Bar Buoy 6A

Cohasset Western Channel Buoy 6W
Cohasset Western Channel

Cohasset Western Channel Daybeacon 5
DBN
Cohasset Western Channel
CGC THUNDER BAY

Cohasset Western Channel Buoy 4
Cohasset Western Channel

Cohasset Western Channel Buoy 3

Cohasset Channel Light 14
TR on skeleton tower, on cylindrical base.
Cohasset Channel
CGC THUNDER BAY

Cohasset Channel Buoy 13
Cohasset Channel

Cohasset Channel Light 12
TR on skeleton tower, on cylindrical base.
Cohasset Channel
CGC THUNDER BAY

Cohasset Channel Buoy 11

Cohasset Channel Light 10
TR on skeleton tower, on cylindrical base.

Cohasset Channel Buoy 9

Yacht Yard Channel Buoy 3
Town River Bay

Yacht Yard Channel Buoy 2
Town River Bay

Town River Bay Channel Buoy 16
Town River Bay

Town River Bay Channel Buoy 14

Town River Bay Channel Buoy 12

Weymouth Fore River Channel Buoy 38
Maintained from 15 Apr to 30
Nov.
Weymouth Fore River

Weymouth Fore River Channel Buoy 36
Maintained from 1 Apr to 1
Nov.
Weymouth Fore River

Weymouth Fore River Channel Buoy 34
Maintained from 1 Apr to 1
Nov.
Weymouth Fore River

Aid maintained from May 1 to Oct 15.

Weymouth Fore River Channel Lighted Buoy 28

Replaced by ice can if endangered by ice.

Weymouth Fore River Channel Lighted Buoy 26

Weymouth Fore River Channel Lighted Buoy 25

Weymouth Back River Lighted Buoy BR

Weymouth Fore River Channel Light 16
TR on skeleton tower on a pile structure.

Weymouth Fore River Channel Light 13
SG on black skeleton tower on pile structure.

Replaced by can when endangered by ice. AIS: MMSI 993672674 (21)

Western Way Lighted Buoy WW
Replaced by nun when endangered by ice. AIS: MMSI 993672281 (21)

Replaced by nun when endangered by ice. AIS: MMSI 993672675 (21)

Harry's Rock Light HR
NR on gray skeleton tower on pile structure.

Windmill Point Light WP
Horn: 1 Blast ev 10s. MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.

Replace by nun when endangered by ice.

Hingham Harbor Approach Buoy 11
Hingham Harbor Approach

Hingham Harbor Approach Buoy 10
Hingham Harbor Approach

Hingham Harbor Approach Buoy 9
Hingham Harbor Approach

Hingham Harbor Approach Lighted Buoy HH

Weir River Buoy 12
Weir River

Weir River Buoy 11
Weir River

Weir River Buoy 10
Weir River

Weymouth Back River Channel Buoy 13
Weymouth Back River

Weymouth Back River Channel Buoy 12
Weymouth Back River

Weymouth Back River Channel Buoy 10
Weymouth Back River

Weymouth Back River Channel Lighted Buoy 8

Weymouth Back River Channel Lighted Buoy 4

Weymouth Back River Channel Lighted Buoy 1

Hingham Harbor Channel Buoy 22
Hingham Harbor Channel

Hingham Harbor Channel Buoy 21
Hingham Harbor Channel

Hingham Harbor Channel Buoy 20
Hingham Harbor Channel

Allerton Harbor Buoy 10
Hingham Bay

Allerton Harbor Buoy 9
Hingham Bay

Allerton Harbor Buoy 8
Hingham Bay

MARK CHANNEL

Point Allerton South Breakwater Light

Point Allerton North Breakwater Light

Crow Flats Middle Buoy 4

Bumkin Island Lighted Bell Buoy 3

Sheep Island Buoy 2

Sheep Island Buoy 1

Crow Point Flats Buoy CF

Bumkin Island Lighted Buoy 1

Outer Seal Rock Isolated Danger Buoy DSR
Black and red bands with two black spherical topmarks; can.

Inner Seal Rock Channel Buoy 1

Nantasket Roads Channel Lighted Buoy 14
Nantasket Roads Southern Approach

Nantasket Roads Bell Buoy 10A
Nantasket Roads Southern Approach

Nantasket Roads Channel Lighted Buoy 11
Nantasket Roads Southern Approach

Nantasket Roads Channel Buoy 10

Nantasket Roads Channel Lighted Buoy TN

Toddy Rocks Buoy 9A

Nantasket Roads Channel Lighted Buoy 9

Nantasket Roads Channel Lighted Bell Buoy 3

Wollaston Channel Buoy 4
Maintained from Apr. 1 to Nov. 1.
Wollaston Channel

Wollaston Channel Buoy 2
Wollaston Channel

Black Rocks Channel Buoy 2B
The Narrows

Nixes Mate Daybeacon
Black, white band midway of height; octagonal pyramid on square granite base.
DBN
The Narrows

The Narrows Buoy 10
The Narrows

Gallops Island Light 7
HORN: 2 blasts ev 20s (2s bl-2s si-2s bl-14s si). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.

The Narrows Buoy 6

The Narrows Bell Buoy 5

The Narrows Light 4

Georges Island Rocks Lighted Buoy 3

The Narrows Daybeacon 2A

Kelly Rock Bell Buoy 2

Spiers Stand Daybeacon
Spiers Stand

Boston South Channel Buoy 11
Boston South Channel

Boston South Channel Lighted Buoy 10
Boston South Channel

Boston South Channel Lighted Buoy 9
Boston South Channel

Boston South Channel Buoy 7

Boston South Channel Lighted Buoy 6

Boston South Channel Buoy 3

Boston South Channel Entrance Lighted Buoy 1

Neponset River Buoy 16
Neponset River

Neponset River Buoy 14
Neponset River

Neponset River Buoy 13
Neponset River

Neponset River Lighted Buoy 7

Squantum Channel Buoy 3
Squantum Channel

Squantum Channel Buoy 2
Squantum Channel

Squantum Channel Buoy 1SC
Squantum Channel

Dorchester Bay Basin Channel Buoy 5
DELINEATE CHANNEL IN BASIN

Dorchester Bay Basin Channel Buoy 4
DELINEATE CHANNEL IN BASIN

Dorchester Bay Basin Channel Buoy 2
DELINEATE CHANNEL IN BASIN

DELINEATE CHANNEL IN BAY BASIN

Dorchester Bay Buoy 10
Dorchester Bay

Dorchester Bay Buoy 8
Dorchester Bay

Dorchester Bay Buoy 6
Dorchester Bay

Dorchester Bay Lighted Buoy 5

Columbia Point Channel Buoy 4

Columbia Point Channel Buoy 3

Columbia Point Channel Buoy 2C

Columbia Point Channel Buoy 1C

Dorchester Bay Lighted Buoy 12

Houghs Neck Channel Buoy 2
Houghs Neck Channel

Houghs Neck Channel Buoy 1
Houghs Neck Channel

Deer Island Pier Inner Light
MARKS PIER
President Roads

Deer Island Pier Outer Light
MARKS PIER
President Roads

President Roads Anchorage Buoy E
President Roads

President Roads Anchorage Lighted Buoy D
AIS: MMSI 993672074 (21). Removed when endangered by ice.

President Roads Anchorage Buoy C
AIS: MMSI 993672073 (21). Removed when endangered by ice.

President Roads Anchorage Lighted Buoy B

President Roads Anchorage Gong Buoy A

Long Island Head Lighted Buoy 17

Long Island Head Light

Deer Island Light
HORN: 1 blast ev 10s (1s bl). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.

Nixes Mate Lighted Buoy 15

Western Way Buoy 9
Western Way

Western Way Buoy 8A
Western Way

Western Way Buoy 8
Western Way

Western Way Buoy 7

Western Way Lighted Buoy 4

Sunken Ledge Daybeacon SL

Hangman Island Ledge Daybeacon HM

Western Way Lighted Buoy 3

Western Way Lighted Buoy 2

Nut Island Pier Light

Western Way Light 1

Peddocks Island Channel Buoy 5P
Peddocks Island Channel

Peddocks Island Channel Buoy 2P
Peddocks Island Channel

Rainsford Island Shoal Danger Buoy
Peddocks Island Channel

Peddocks Island Channel Hospital Shoal Buoy HS

Quincy Bay Approach Buoy 4
Quincy Bay Approach

Quincy Bay Approach Buoy 3
Quincy Bay Approach

Quincy Bay Approach Buoy 1
Quincy Bay Approach

Nubble Channel Buoy 6
Nubble Channel

Nubble Channel Buoy 5
Nubble Channel

Nubble Channel Buoy 4
Nubble Channel

Cape Cod Canal Approach Lighted Buoy 1
Cape Cod Canal Approach

Cape Cod Canal Approach Lighted Bell Buoy CC
Cape Cod Canal Approach

Mary Ann Rocks Lighted Whistle Buoy 12
Cape Cod Canal Approach

Duck Creek Buoy 6
Wellfleet Harbor

Duck Creek Buoy 5
Wellfleet Harbor

Duck Creek Buoy 4
Wellfleet Harbor

Wellfleet Harbor Channel Buoy 16

Wellfleet Harbor Channel Buoy 15

Wellfleet Harbor Breakwater Light 14

Wellfleet Harbor Channel Buoy 13

Wellfleet Harbor Channel Lighted Buoy 10
Replaced by nun from Oct. 15 to Apr. 15.

Billingsgate Island Lighted Buoy 8
Replaced by nun from Oct. 15 to Apr. 15.

Billingsgate Island Buoy 6

Billingsgate Lighted Buoy 5
Replaced by can from Oct. 15 to Apr. 15.

Billingsgate Flat Lighted Buoy 3
Replaced by LIB when endangered by ice.

James Longstreet Isolated Danger Lighted Buoy DJ
Black and red bands with two black spherical topmarks.

Billingsgate Shoal Lighted Bell Buoy 1

Sesuit Harbor West Jetty Light 2
Sesuit Harbor

Sesuit Harbor East Jetty Daybeacon 3
Sesuit Harbor

Sesuit Harbor Approach Lighted Bell Buoy 1S
Sesuit Harbor

Maraspin Creek Lighted Buoy 1
Maintained from Jun 1 to Nov 1.
Barnstable Harbor

Barnstable Harbor Buoy 11
Barnstable Harbor

Barnstable Harbor Lighted Buoy 9
Replaced by nun from Oct. 15 to Apr. 15.
Barnstable Harbor

Barnstable Harbor Lighted Buoy 8
Replaced by can from Oct. 15 to Apr. 15.

Barnstable Harbor Buoy 7

Barnstable Harbor Entrance Lighted Buoy 6

Barnstable Harbor Entrance Buoy 4

Barnstable Harbor Entrance Buoy 3

Barnstable Harbor Entrance Buoy 2

Barnstable Harbor Entrance Lighted Bell Buoy BH

Chatham Harbor Buoy 5
MARK CHAN

Chatham Harbor Buoy 4
Positions of buoys frequently shifted with changing conditions.
MARK CHAN

Chatham Harbor Buoy 2
Positions of buoys frequently shifted with changing conditions.
MARK CHAN

Positions of buoys frequently shifted with changing conditions.

Cape Cod Canal Eastern Entrance Range Rear Light
Visible 4° each side of range line.
RR
Cape Cod Canal Eastern Entrance

Cape Cod Canal Eastern Entrance Range Front Light
Visible 4° each side of range line.
RF
Cape Cod Canal Eastern Entrance

Cape Cod Canal Eastern Entrance Buoy 7
Cape Cod Canal Eastern Entrance

Cape Cod Canal Eastern Entrance Buoy 5

Cape Cod Canal Eastern Entrance Lighted Buoy 4

Cape Cod Canal Eastern Entrance Lighted Bell Buoy 3

Cape Cod Canal Breakwater Light 6
HORN: 1 blast ev 15s (2s bl). Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.

Southway Mid-Channel Buoy J

Southway Mid-Channel Buoy I

Southway Mid-Channel Buoy H

Southway Mid-Channel Buoy G

Southway Mid-Channel Buoy F

Southway Mid-Channel Buoy E

Southway Mid-Channel Buoy D

Southway Mid-Channel Buoy C

Southway Mid-Channel Buoy B

Southway Mid-Channel Buoy A

Provincetown Harbor Breakwater East End Light 5
Provincetown Harbor Approach

Provincetown Harbor Breakwater West End Light 4
Provincetown Harbor Approach

Long Point Shoal Lighted Bell Buoy 3
Provincetown Harbor Approach

Long Point Light
HORN: 1 blast ev 15s (2s bl). Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.

Wood End Light
Light may also be displayed during daytime when sound signal is in operation.
HORN: 1 blast ev 30s (3s bl). Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.

Provincetown Harbor Approach Lighted Bell Buoy 1

Aunt Lydias Cove Buoy 6

Aunt Lydias Cove Buoy 5

Aunt Lydias Cove Buoy 4

Little Pleasant Bay Buoy 65

Little Pleasant Bay Buoy 64

Little Pleasant Bay Buoy 63

Little Pleasant Bay Buoy 32A

Ryder Cove Buoy 12

Ryder Cove Buoy 11

Ryder Cove Buoy 9

Pleasant Bay Buoy 22

Pleasant Bay Buoy 21

Pleasant Bay Buoy 20

MARKS CHANNEL

MARKS ROCK

South River Buoy 18
South River

South River Buoy 9
South River

South River Buoy 7
South River

New Inlet Buoy 12
New Inlet

New Inlet Buoy 10
New Inlet

North River Junction Buoy NR
New Inlet

New Inlet Buoy 9

New Inlet Lighted Bell Buoy 1

Bartlett Rock Isolated Danger Buoy BR
Black and red bands with two black spherical topmarks; can.
Green Harbor Approach

Green Harbor Approach Buoy 2GH
Green Harbor Approach

Farnham Rock Lighted Bell Buoy 6
Green Harbor Approach

Herring River Buoy 12
HERRING RIVER NAVIGATION
Sector Boston, Submerged Land Act (SLA)

Herring River Buoy 10
HERRING RIVER NAVIGATION
Sector Boston, Submerged Land Act (SLA)

Herring River Buoy 9
HERRING RIVER NAVIGATION

MARK BEST WATER

TO MARK BEST WATER

North River Buoy 21

North River Buoy 17

North River Buoy 15

Winthrop Light 1
Winthrop Harbor Approach

Winthrop Harbor Approach Buoy 7
Winthrop Harbor Approach

Winthrop Harbor Approach Buoy 6
Winthrop Harbor Approach

Winthrop Harbor Approach Lighted Buoy 5

Winthrop Harbor Approach Buoy 4

Bird Island Flats Buoy 3
Bird Island Flats

Bird Island Flats Buoy 2
Bird Island Flats

Bird Island Flats Anchorage Buoy A
Bird Island Flats

Cottage Park Buoy 4
Winthrop Channel

Cottage Park Buoy 2
Winthrop Channel

Winthrop Channel Buoy 3
Winthrop Channel

Winthrop Channel Buoy 2

Boston Main Channel Lighted Buoy 16

Boston Main Channel Light 14

New England Aquarium Intake Buoy
PROTECTION OF INTAKE LINE

Boston Main Channel Lighted Buoy 13

Boston Main Channel Lighted Buoy 12

Boston Main Channel Light 7

Boston Main Channel Lighted Buoy 5A

Boston Main Channel Light 5

Boston Main Channel Lighted Bell Buoy 4

Mystic River Buoy 5
Mystic River

Island End Point Buoy 4
Mystic River

Island End Flats Lighted Buoy 2
Mystic River

Lower Middle Channel Buoy 5
Lower Middle Channel

Lower Middle Channel Lighted Buoy 3
Lower Middle Channel

Lower Middle Channel Buoy 4
Lower Middle Channel

Lower Middle Channel Buoy 1

Island End River Daybeacon 6
OPERATION OF ADMIRAL'S HILL MARINA

Island End River Daybeacon 4
OPERATION OF ADMIRAL'S HILL MARINA

Logan Airport Security Zone Buoy 29
Marked RESTRICTED AREA.
Logan Airport Security Zone

Logan Airport Security Zone Buoy 23
Marked RESTRICTED AREA.
Logan Airport Security Zone

Logan Airport Security Zone Buoy 22
Marked RESTRICTED AREA.
Logan Airport Security Zone

Logan Airport Security Zone Lighted Buoy 8

Logan Airport Security Zone Lighted Buoy 17

Logan Airport Security Zone Lighted Buoy 24

Boston Anchorage One CG Mooring Buoy
Marked "CG"

Chelsea River Channel Lighted Buoy 13
Chelsea River

Chelsea River Channel Lighted Buoy 12
Chelsea River

Chelsea River Channel Lighted Buoy 10
Chelsea River

Chelsea Point Channel Buoy 10
Chelsea Point Channel

Chelsea Point Channel Buoy 9
Chelsea Point Channel

Chelsea Point Channel Buoy 8
Chelsea Point Channel

Dodge Rock Daybeacon 2
Sandy Bay

Rockport Breakwater Light 6
Sandy Bay

Harbor Rock Buoy 4
Sandy Bay

Nine Foot Rock Buoy 3

Avery Ledge Lighted Buoy 2

Sandy Bay Breakwater Lighted Gong Buoy 3
Replaced by can when endangered by ice. Do not pass to eastward of buoy.

Green Rock Danger Daybeacon
DANGER ROCKS.
Gloucester Harbor

Black Rock Danger Daybeacon
DANGER ROCKS
Gloucester Harbor

Ten Pound Island Light
HORN: 2 blasts ev 20s (2s bl-2s si-2s bl-14s si).
Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.
Gloucester Harbor

Mayflower Ledge Buoy 8

Praire Ledge Lighted Buoy 7

Tenpound Island Ledge Lighted Buoy 6

Dog Bar Channel Buoy 1DB

Round Rock Shoal Lighted Buoy RR

Normans Woe Rock Bell Buoy 3

Dog Bar Buoy 2DB

Gloucester Breakwater Light
HORN: 1 blast ev 10s (1s bl). Fog signal is radio
activated, during times of reduced visibility, turn
marine VHF-FM radio to channel 83A/157.175Mhz.
Key microphone 5 times consecutively, to activate
fog signal for 60 minutes.
White house and tower on brown square skeleton framework.

Eastern Point Ledge Buoy 4

Essex Bay Channel Buoy 17
Essex Bay

Essex Bay Channel Buoy 16
Essex Bay

Essex Bay Channel Buoy 15
Essex Bay

Essex Bay Danger Daybeacon
DANGER - SHOALING.

Essex Bay Entrance Buoy 3

Essex Bay Entrance Lighted Bell Buoy 1

Essex River Midchannel Buoy H
Essex River

Essex River Midchannel Buoy G
Essex River

Essex River Midchannel Buoy F
Essex River

Essex River Midchannel Buoy E

Essex River Midchannel Buoy D

Essex River Midchannel Buoy C

Essex River Midchannel Buoy B

Essex River Midchannel Buoy A

Essex River Channel Buoy 19

Essex River Channel Buoy 18

Gloucester Inner Harbor South Channel Buoy 3
Gloucester Inner Harbor

Gloucester Inner Harbor South Channel Buoy 2S
Gloucester Inner Harbor

Gloucester Inner Harbor Danger Daybeacon
Gloucester Inner Harbor

Gloucester Inner Harbor North Channel Buoy 4

Gloucester Inner Harbor North Channel Buoy 2

Gloucester Inner Harbor Junction Lighted Buoy GH

Annisquam River South Entrance Buoy BC
Annisquam River

Annisquam River Channel Buoy 50
Annisquam River

Annisquam River Channel Light 48
TR on box on black cylindrical structure.
Annisquam River

Annisquam River Channel Buoy 49

Annisquam River Channel Buoy 47

Annisquam River Channel Light 41

Annisquam River Channel Light 35

Lobster Cove Daybeacon LC

Barn Rocks Daybeacon BN

Annisquam River Channel Daybeacon 7

Annisquam Harbor Light
Red from 180° to 217°.
HORN: 2 blasts ev 60s (3s bl-3s si-3s bl-51s si).
MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.
White cylindrical tower; elevated walk to dwelling.

Annisquam River Entrance Buoy 3

Annisquam River Entrance Lighted Bell Buoy AR

Plum Cove Ledge Buoy 1

Back Channel Buoy 7
Back Channel
CG ANT SOUTH PORTLAND

Back Channel Buoy 5
Back Channel
CG ANT SOUTH PORTLAND

Back Channel Buoy 4
Back Channel
CG ANT SOUTH PORTLAND

Great Bay Buoy 7
Little Bay

Great Bay Entrance Buoy 6
Little Bay

The Rocks Buoy 4
Little Bay

Fox Point Rock Buoy 3

Eight-Foot Rock Buoy 2

Hen Island Ledge Buoy 1

Piscataqua River Buoy 21
Piscataqua River

Piscataqua River Buoy 20
Piscataqua River

Piscataqua River Buoy 18
Piscataqua River

Sprague Fuel Terminal Upper Dock Light
TO PROTECT BOATERS

Sprague Fuel Terminal Center Dock Light
TO PROTECT BOATERS

Sprague Fuel Terminal Lower Dock Light
MOORING FACILITY

Piscataqua River Lighted Buoy 11

Piscataqua River Lighted Buoy 10

Piscataqua River Lighted Buoy 9

Cable Pier West Light
AID TO GENERAL NAVIGATION

Piscataqua River Light 4

Pierce Island Buoy 5
Portsmouth Harbor

Pierce Island Buoy 3
Portsmouth Harbor

Kittery Flats Turning Basin Buoy D
Portsmouth Harbor

Kittery Flats Turning Basin Buoy C

Kittery Flats Turning Basin Buoy B

Kittery Flats Turning Basin Buoy A

Badgers Island Lighted Buoy 14

Gangway Rocks Lighted Buoy 13

South Beacon Shoal Daybeacon SBS

Seavey Island Daybeacon 12B
Marks remains of submerged quaywall.

Seavey Island Daybeacon 12A
Marks remains of submerged quaywall.

South Beacon Shoal Lighted Buoy 11

Henderson Point Light 10

Goat Island Ledge Lighted Buoy 9

Hick Rocks Buoy 6

Pierce Island Range Rear Light
Visible 4° each side of range line.
RR

Pierce Island Range Front Light
RF

Fishing Island Ledge Lighted Buoy 4

Clark Island Light 8

Cod Rock Lighted Buoy 5

Portsmouth Harbor (New Castle) Light
White conical tower, fog signal house attached.

Stielman Rocks Buoy 3

Wood Island Lighted Buoy 2

Portsmouth Harbor Channel Range Rear Light

Portsmouth Harbor Channel Range Front Light

Sagamore Creek Buoy 20
Sagamore Creek

Sagamore Creek Buoy 18
Sagamore Creek

Sagamore Creek Buoy 17
Sagamore Creek

Sagamore Creek Buoy SL

Northward Channel Buoy 5
Northward Channel

Northward Channel Buoy 4
Northward Channel

Northward Channel Buoy 3
Northward Channel

Little Harbor Buoy 11
Little Harbor

Little Harbor Buoy 10
Little Harbor

Little Harbor Buoy 8
Little Harbor

Jaffrey Point Light 4

Little Harbor Entrance Buoy 2

Little Harbor Entrance Buoy 1

Back Cove Approach Lighted Buoy 8
Back Cove Approach

Back Cove Approach Buoy 6
Back Cove Approach

Back Cove Approach Lighted Buoy 5
Back Cove Approach

Back Cove Approach Buoy 4

Back Cove Approach Buoy 3
CGC ABBIE BURGESS

Back Cove Approach Buoy C

Fish Point Lighted Buoy 1

Lighthouse Channel Buoy 6
Lighthouse Channel

Lighthouse Channel Daybeacon 5
Lighthouse Channel

Lighthouse Channel Lighted Buoy 4
Lighthouse Channel

Lighthouse Channel Light 3

Lighthouse Channel Lighted Buoy 2

Lighthouse Channel Lighted Buoy 1

Mill Cove Daybeacon 11
TO MARK DREDGED AREAS

Mill Cove Daybeacon 8
TO MARK DREDGED AREAS

Mill Cove Buoy 7
Maintained from Apr. 1 to Oct. 30.
TO MARK DREDGED AREAS

Mill Cove Daybeacon 6

Mill Cove Buoy 5
Maintained from Apr. 1 to Oct. 30.

Mill Cove Buoy 3
Maintained from Apr. 1 to Oct. 30.

TO MARK DREDGED AREA

Fore River Daybeacon 5A
Fore River

Fore River Lighted Buoy 6
Fore River

Fore River Lighted Buoy 5
Fore River

Fore River Buoy 3

Fore River Lighted Buoy 1

Fore River Outfall Daybeacon
TO MARK DOWNSTREAM END OF SEWER

Coast Guard Pierhead Light
Portland Harbor

South Portland Pier Light
PTLD HBR COMMISSION CONSIDERS PIER HAZARDOUS TO NAV
Portland Harbor

Dredged Channel Lighted Buoy 5
Portland Harbor
CGC ABBIE BURGESS

Diamond Island Ledge Light

Fort Georges Island Ledge Lighted Buoy 4
CGC ABBIE BURGESS

Seventeen-Foot Shoal Lighted Buoy 3

Portland Harbor Anchorage Lighted Bell Buoy B

Portland Harbor Anchorage Lighted Buoy A

Spring Point Pier Light
MARKS PROMINENT PIER DEEMED HAZARDOUS BY PTLD HBR COMMISSION

Portland Harbor Channel Lighted Buoy 1

Spring Point Ledge Light
White from 331° to 337° covers fairway entrance, white from 074° to 288°; red in intervening sectors.Lighted throughout 24 hours.Emergency light of reduced intensity when main light is extinguished.

Fort Scammel Point Light 2

Portland Harbor Main Approach Lighted Buoy 14

Portland Harbor Main Approach Lighted Bell Buoy 12

Ram Island Ledge Light

Portland Head Directional Light
DLT

Portland Head Light
Lighted throughout 24 hours.Emergency light of reduced intensity when main light is extinguished.
HORN: 1 blast ev 15s (2s bl). MRASS -Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.

Center Harbor Ledge Daybeacon 3
Center Harbor
CGC BRIDLE
CG ANT S WEST HARBOR

Chatto Island Ledge Buoy 2
Center Harbor
CG ANT S WEST HARBOR

Billings Cove Buoy 18
Eggemoggin Reach
CG ANT S WEST HARBOR

Tinker Ledges Buoy 17
Eggemoggin Reach

Stump Cove Ledge Buoy 16
Eggemoggin Reach

Benjamin River Buoy 4
Maintained from May 15 to Nov. 15.

Benjamin River Buoy 3
Maintained from May 15 to Nov. 15.

Benjamin River Buoy 2
Maintained from May 15 to Nov. 15.

Bridges Point Shoal Buoy 14

Torrey Ledge Buoy 12

Torrey Castle Daybeacon 10
CGC BRIDLE

Torrey Island Buoy 8

Conary Ledge Buoy 7

Channel Rock Buoy 5

Devils Head Ledge Buoy 6

Hay Island Ledge Buoy 4

Eggemoggin Eastern Bell Buoy EE

Blue Hill Harbor Buoy 8
Blue Hill Harbor

Blue Hill Harbor Buoy 7
Blue Hill Harbor

Blue Hill Harbor Buoy 6
Blue Hill Harbor

Pond Island Passage Buoy 3
Pond Island Passage

Pond Island Passage Buoy 2
Pond Island Passage

Pond Island Passage Buoy 1
Pond Island Passage

Jims Point Buoy 10
Western Passage