Outer Brewster Island

The island has a permanent size of 20 acres (8.1 ha), and consists of exposed bedrock covered by fertile soil bounded by a rocky shore with steep cliffs.

It provides a nesting habitat for coastal water birds, including cormorants, gulls, common eider ducks, glossy ibis and American oystercatchers.

The relative barrenness and rocky shoreline of Outer Brewster has resulted in limited human usage.

He built the house at 27 Harvard Square and 92 Main Street in Charlestown from stone mined on Outer Brewster.

Political opposition from environmental, recreational and boating interests succeeded in preventing the proposal from moving forward.