Great Marsh

The Great Marsh (also sometimes called the Great Salt Marsh^[1]) is a long, continuous saltmarsh in eastern New England extending from Cape Ann in northeastern Massachusetts to the southeastern coast of New Hampshire.^[2] It includes roughly 20,000 to 30,000 acres (8,100 to 12,100 hectares)^[2][3][4] of saltwater marsh, mudflats, islands, sandy beaches, dunes, rivers, and other water bodies.^[2] The Great Marsh makes up much of the northeastern half of Essex County, Massachusetts, and touches the towns and cities of Gloucester, Essex, Ipswich, Rowley, Newbury, Newburyport, and Salisbury in Massachusetts as well as the towns of Seabrook and Hampton in New Hampshire.^[5][6] It is a designated Important Bird Area.^[1]

Great Marsh
Great Salt Marsh
The Great Marsh in Plum Island, Newbury, Rowley, and Ipswich, Massachusetts
Great Marsh
Location	Massachusetts New Hampshire
Coordinates	42.735277°N 70.818914°W / 42.735277; -70.818914
Type	Saltmarsh
River sources	Parker River
Ocean/sea sources	Atlantic Ocean
Surface area	20,000–30,000 acres (8,100–12,100 ha)
Salinity	Salt Water
Frozen	Salt water Lake
Islands	Plum Island
Settlements	In New Hampshire Hampton Seabrook In Massachusetts Salisbury Newburyport Newbury Rowley Ipswich Essex Gloucester