Relief shown by hachures. Depths shown by soundings.
Oriented with north to the upper right.
Inset: Continuation from Throg's Neck to the city of New York.
Includes navigation notes.
"Entered according to Act of Congress in the year 1866 by George Eldridge & Saml. Thaxter Cushing in the Clerk's Office of the District Court of the District of Massachusetts."
Label and publisher's list of Eldridge's charts pasted on verso.
Label pasted on verso: Eldridge's chart, no. 5 ; Long Island Sound, with book of sailing directions.