Boston Harbor (inner and outer), MA

At the head of Massachusetts Bay includes all tidewater W of a line extending SE from Deer Island to Point Allerton, E of Boston C.H.; Cities of Boston and Quincy and Towns of Winthrop, Hull, Weymouth and Hingham.Also see: Boston Inner Harbor, Dorchester Bay, Quincy Bay, and Hingham Bay.

Elevation

-7 feet

Latitude (decimal)

42.3417649

Longitude (decimal)

-70.9661596

GNIS/GNS Feature ID

614047

Authoritative Source

U.S. Geographic Information Names System (GNIS) at U.S. Geologic Survey (USGS), ( https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names : accessed 23 May 2025). Entered placename and selected filters to find domestic name approved by the United States Board on Geographic Names.