Marine Battery
Built in early 1776, Marine Battery was destroyed in October 1777. The following year the battery was partially reconstructed on the surviving rampart to protect the Great Chain, which was probably anchored in the cove below.
This 10 foot thick rampart is entirely of stone, with mortarless stone masonry on both its interior and exterior retaining walls. The inner and outer walls of the 1776 parapet were made of logs, the space between them filled with fascines and earth. Behind the rampart is a stone foundation which was the rear support of a 16 foot wide wooden platform for the cannon; its front support was a ledge at the top of the rampart’s inner wall. In 1776 the battery contained eight cannon (7 nine-pounders and 1 six-pounder).
Courtesy hmdb.org
