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  1. Ferdinand Vandeveer Hayden (September 7, 1829 – December 22, 1887) was an American geologist noted for his pioneering surveying expeditions of the Rocky Mountains in the late 19th century. He was also a physician who served with the Union Army during the Civil War.

  2. Ferdinand Vandeveer Hayden (Westfield (Massachusetts), 7 de septiembre de 1829 — Filadelfia, 22 de diciembre de 1887) fue un geólogo estadounidense célebre por haber participado en varias expediciones de exploración de las Montañas Rocosas, a finales del siglo XIX.

  3. Ferdinand Vandiveer Hayden was an American geologist who was a pioneer investigator of the western United States. His explorations and geologic studies of the Great Plains and Rocky Mountains helped lay the foundation of the U.S. Geological Survey. In 1853 Hayden made a trip with the paleontologist.

  4. Ferdinand Vandeveer Hayden, a geologist and original Megatheria, was an eccentric club member, according to Robert Kennicott. Hayden’s early life began in Westfield, Massachusetts on September 7, 1828. Hayden’s parents, Asa Hayden and Melinda Hawley, were a somewhat troubled pair.

  5. Ferdinand Vandeveer Hayden ( Westfield (Massachusetts), 7 de septiembre de 1829 — Filadelfia, 22 de diciembre de 1887) fue un geólogo estadounidense célebre por haber participado en varias expediciones de exploración de las Montañas Rocosas, a finales del siglo XIX.

  6. Hayden’s lobbying efforts and an advanced copy of his survey’s report proved to be crucial pieces in the 1872 decision to set aside Yellowstone as the worlds first national park.

  7. Biography of Ferdinand Vandeveer Hayden, a geologist, naturalist, and explorer who had close ties with the Smithsonian throughout his early career.