Locations of American whaling vessels from 1790-1924, based on a sample of whalers' log books.
Many American whaling vessels kept records of their daily locations and details of their whale catches. Days without any catches are represented with light blue dots. Dark blue dots represent sperm whale catches; red dots represent right whale catches; purple dots represent humpback whale catches; green dots represent bowhead whale catches; orange dots represent gray whale catches; yellow dots represent unspecified whale catches.
For more information see our interview with Tim Smith, with the U.S. National Marine Fisheries Service.
Credit: Smith, Tim D, Judith N Lund, Elizabeth A Josephson, Randall R Reeves. In press. Spatial Dynamics of American Offshore Whaling in the 19th Century: Were sperm whales depleted? Whaling and History III. Kommander Chr. Christensens Hvalfangstmuseum, Sandefjord, Norway.
The contradictory history of a dam that became a statement of American power and prestige.
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Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
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