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Bison Herd

Bison on the Great Plains

On the Great Plains Lewis wrote of “immense [bison] herds ... in every direction,” and says the bison were “so gentle that we pass near them ... without appearing to excite any alarm.”

An estimated 60 million bison roamed the pre-Lewis and Clark plains. By 1900 white sportsmen had reduced their number to fewer than 300 in the United States. Today there are some 250,000 bison on the plains.

Photograph by Mark Thiessen

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