Original: The elevation of Cape Cod is from, at the top of Pine Hill, in the Bourne portion of the Massachusetts Military Reservation to sea level. The body of water located between Cape Cod and the mainland, bordered to the north by Massachusetts Bay, is Cape Cod Bay; west of Cape Cod is Buzzards Bay.
Simplified: Cape Cod (or simply the Cape) is an arm-shaped peninsula located in the eastern part of Massachusetts.