Blue Hill Bay is a

bay A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a Gulf (geography), gulf, sea, sound (geography), sound, or bight (geogra ...

lying to the west of

Mount Desert Island Mount Desert Island (MDI; french: Île des Monts Déserts) in Hancock County, Maine, is the largest island off the coast of Maine. With an area of it is the 52nd-largest island in the United States, the sixth-largest island in the contiguous ...

Hancock County, Maine Hancock County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 55,478. Its county seat is Ellsworth. The county was incorporated on June 25, 1789, and named for John Hancock, the first governor of ...

, United States. Approximately long, its southern boundaries are set by Swan's Island and Placentia Island at its entrance; the town of Blue Hill lies at the far end. Morgan Bay, Union River Bay, and Western Bay empty into it. Long Island in the north of the bay is the largest uninhabited island in Maine. Due to its protected waters, Blue Hill Bay is popular with recreational boaters. In addition to crab,

lobster Lobsters are a family (biology), family (Nephropidae, Synonym (taxonomy), synonym Homaridae) of marine crustaceans. They have long bodies with muscular tails and live in crevices or burrows on the sea floor. Three of their five pairs of legs ...

, and other fisheries, aquaculture of

salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...

and

mussel Mussel () is the common name used for members of several families of bivalve molluscs, from saltwater and Freshwater bivalve, freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other ...

s is practiced in the bay. The shores of the bay are an important breeding ground for

harbor seal The harbor (or harbour) seal (''Phoca vitulina''), also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinniped (walruses, eared sea ...

References

{{Authority control Bays of Hancock County, Maine Mount Desert Island Bays of Maine