Coastline--both Plymouth and Boston are located in Massachusetts on the coast of the Atlantic Ocean.
The coastline of Massachusetts is rocky with sand beaches. The coastline provided by cities with a place to set up port making both cities trading posts for the colony and eventually the state. The coast also provided a vital fishing industry which brought income and food supply to Massachusetts.
Accessibility to resources, its hunger for power, the competition between it and others, and great trade relations.
