Detail from a 1692 French map of Boston harbor.  The Shawmut Peninsula, site of Boston is in the upper left, with Charlestown top center.  Castle Island is visible to the lower left.
Pierre d'Au de Jolliet
1692
Boston Public Library digital map collection: <a rel="nofollow" class="external free" href="http://maps.bpl.org/details_10927/">http://maps.bpl.org/details_10927/</a>