First accurate map to show the gold discoveries. In President Polk's Message to Congress, December 5, 1848, House Executive Document No.1, 30th Congress, Second Session. Wheat calls this "Most important of all the maps of 1848...of paramount importance in any cartographical consideration of the gold rush." See also Mason's two maps published with his report in the same volume. Relief shown by hachures.
note
First accurate map to show the gold discoveries. In President Polk's Message to Congress, December 5, 1848, House Executive Document No.1, 30th Congress, Second Session. Wheat calls this "Most important of all the maps of 1848...of paramount importance in any cartographical consideration of the gold rush." See also Mason's two maps published with his report in the same volume. Relief shown by hachures.
Note
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