Outside neat line upper left : 3045., Relief shown by contours, spot heights, and landform drawings. Depths shown by soundings and contours., and Shows "Magnetic variation for 1875."
Publisher:
United States Coast Survey,
Subject (Geographic):
Narragansett Bay (R.I.)--Maps
Subject (Name):
Peirce, Benjamin, 1809-1880 and U.S. Coast and Geodetic Survey