Chelsea Creek, shown on federal maps as the Chelsea River, is a  waterway that runs along the shore of Chelsea, Massachusetts, and separates that community from the cities of Boston and Revere, as well as feeding part of the current Belle Isle Marsh Reservation that separates Boston from Revere.
The Chelsea Creek, depicted on federal maps as the Chelsea River, serves as a dividing line between Chelsea, Massachusetts, and the cities of Boston and Revere. It also contributes to the formation of the Belle Isle Marsh Reservation, which separates Boston from Revere.