Map of Portland Harbor, Maine.

Map shows early nineteenth century canals, bridges, roads, some buildings, and islands of Portland Harbor, Maine. Inset: "Table of Tides observed from 19th to 27th Novr. 1832." Scale not given.
Date: 1833
Creator: Throop, John Peter Van Ness, 1794-ca. 1861
System: The Portal to Texas History