Date: | 1907 |
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Description: | A map of the eastern portion of the Apostle Islands group, and a detailed map of Gull Island showing the relief on the island, are included here, along wit... |
Date: | 1900 |
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Description: | This chart of the northern Apostle Islands and Lake Superior shoreline shows relief by contours and spot heights and depths by contours, gradient tints and... |
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