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John Wesley Powell

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The Hayden Geological Survey and the Yellowstone National Park

The Hayden Geological Survey and the Yellowstone National Park

Tabea Tietz
On June 11, 1871, the Hayden Geological Survey of 1871 led by geologist Ferdinand Vandeveer Hayden began, which explored the region of northwestern Wyoming that later became Yellowstone National Park in 1872. Ferdinand Hayden – Early Years Ferdinand Hayden was born in Westfield, Massachusetts, USA. When Ferdinand Hayden was ten years old his father died. Ferdinand Hayden moved in with his uncle in Ohio. As a young boy he was fascinated with all nature…
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The Expeditions of John Wesley Powell

The Expeditions of John Wesley Powell

Tabea Tietz
On March 24, 1834, American geologist and ethnologist John Wesley Powell was born. He published the first classification of American Indian languages and was the first director of the U.S. Bureau of Ethnology. He is famous for the 1869 Powell Geographic Expedition, a three-month river trip down the Green and Colorado rivers, including the first known passage through the Grand Canyon. “Economy in speech is the force by which its development has…
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