Machias Bay
Machias Bay Show map of Maine Machias Bay Show map of the United States
Location	Washington County, Maine, United States
Coordinates	44°38′N 67°20′W / 44.64°N 67.33°W / 44.64; -67.33
Part of	Gulf of Maine
River sources	Machias River

Max. length	7 miles (11 km)
Max. width	4 miles (6.4 km)
Surface elevation	0 feet (0 m)

Islands	Cross Island
Settlements	Machias, Machiasport

Machias Bay is a bay in Washington County, Maine that opens into the Gulf of Maine.^[1] The bay was the scene of the Battle of Machias — the first naval battle of the American Revolution, occasioned by the British need for lumber for Boston.^[2]

Located at the mouth of the Machias River between the towns of Machiasport, Machias, East Machias, Whiting, and Cutler, it is separated from Little Machias Bay to the east by the Cutler Peninsula, from Little Kennebec Bay to the west by the Point of Maine, and from the Gulf of Maine to the south by Cross Island and the Libby Islands.

The bay extends roughly 7 mi. (12 km) and is 4 mi. (6 km) at its widest.

Notes

External links

Gulf of Maine estuaries

Maine

Bays	Blue Hill Bay Casco Bay Chandler Bay Dennys Bay Englishman Bay Frenchman Bay Harrington Bay Machias Bay Maquoit Bay Merrymeeting Bay Muscongus Bay Narraguagus Bay Passamaquoddy Bay Penobscot Bay Pleasant Bay Saco Bay Wohoa Bay
River mouths	Batson River Benjamin River Cape Neddick River Damariscotta River Johns River Jordan River Josias River Kennebunk River Little River (Boothbay) Little River (Drakes Island) Little River (Georgetown) Little River (Goosefare Bay) Little River (York) Morse River Mousam River Ogunquit River Pemaquid River Piscataqua River Sheepscot River Sprague River Webhannet River York River

Massachusetts

Bays	Cape Cod Bay Massachusetts Bay
River mouths	Annisquam River Eagle Hill River Egypt River Ipswich River Jericho Creek Merrimack River Roger Island River Rowley River Skug River

New Brunswick

Bays	Bay of Fundy Chignecto Bay Cumberland Basin Passamaquoddy Bay Shepody Bay
River mouths	Big Salmon River Quiddy River Saint John River

New Hampshire

River mouths	Blackwater River Hampton River Piscataqua River

Nova Scotia

Bays	Bay of Fundy Annapolis Basin Cobequid Bay Cumberland Basin Minas Basin St. Marys Bay
River mouths	Tusket River

Rivers of Maine by drainage system

Bay of Fundy

Passamaquoddy Bay

Saint John River Watershed

Casco Bay

Fore River Watershed	Fore River Long Creek Stroudwater River South Branch Stroudwater River
Presumpscot River Watershed	Bear River Chute River Crooked River East Branch Piscataqua River Little River Muddy River North Branch Little River Northwest River Piscataqua River Pleasant River Presumpscot River Songo River Sticky River Tenny River
Others	Cousins River Harraseeket River Little River New Meadows River Royal River

Gulf of Maine

Blue Hill Bay (Union River Watershed)	Bog River East Branch Union River Little Bog River Middle Branch Union River Union River West Branch Union River
Chandler Bay	Sandy River
Dennys Bay	Dennys River Hardscrabble River Orange River
Englishman Bay	Chandler River East Branch Chandler River Englishman River
Frenchman Bay	Jordan Stream Skillings River
Harrington Bay	Harrington River Mill River
Little River Watershed	Little River (Drakes Island) Merriland River
Machias Bay (Machias River Watershed)	Crooked River East Machias River Machias River Maine River Middle River West Branch Machias River
Mousam River Watershed	Littlefield River Middle Branch Mousam River Mousam River
Narraguagus Bay (Narraguagus River Watershed)	Little Narraguagus River Narraguagus River Spring River West Branch Narraguagus River (Cherryfield) West Branch Narraguagus River (Hancock County)
Pleasant Bay (Pleasant River Watershed)	Little River Pleasant River West Branch Pleasant River Western Little River
Piscataqua River Watershed	Great Works River Little River Neoutaquet River Piscataqua River Salmon Falls River
Sheepscot River Watershed	Back River Cross River Dyer River Marsh River Sasanoa River Sheepscot River West Branch Sheepscot River
Wohoa Bay	Indian River Southwest Branch Indian River West River
Others	Batson River Benjamin River Cape Neddick River Damariscotta River Johns River Jordan River Josias River Kennebunk River Little River (Boothbay) Little River (Georgetown) Little River (Goosefare Bay) Little River (York) Morse River Ogunquit River Pemaquid River Sprague River Webhannet River York River

Merrymeeting Bay

Androscoggin River Watershed

Kennebec River Watershed

Muscongus Bay

Saint George River Watershed	Back River Dead River East Branch Oyster River Mill River Oyster River Saint George River West Branch Oyster River
Others	Back River (Medomak) Back River (Meduncook) Goose River Medomak River Meduncook River

Penobscot Bay

Penobscot River Watershed

Others

Saco Bay

Saco River Watershed	Charles River Cold River Hancock Brook Kezar River Little Cold River Little Ossipee River Little River Little Saco River Mad River Middle Branch Mad River Old Course Saco River Ossipee River Saco River Shepards River South Branch Mad River South River Tenmile River West Branch Tenmile River
Others	Dunstan River Libby River Nonesuch River Scarborough River Spurwink River

Authority control databases

Authority control databases
International	VIAF
National	Israel United States