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Map no. 1149 October 15, 1942.
Blueprint.
Iron mines are shown in red.
Relief shown pictorially.
Relief shown by hachures. Depths shown by soundings in Lake Ontario.
Shows mines, meandered and not meandered streams, plank roads, and rail roads.
Pictorial map.
Cut from the October 25, 1898 issue of the Boston Herald.
Relief shown by gradient tints.
Shows county boundaries.
Cover title: Mitchell's map of Pennsylvania.
Prime meridians: Greenwich, Washington.